You may be the most rational person in the world, yet when first-date infatuation hits you, it becomes hard to see red flags in relationships. And then there's some anxiety and fear of abandonment due to past relationships to top it off. Yeah, it's not as pretty as in romcoms.
But there are hope and solutions! The first step to breaking the cycle is evaluating your partner critically and detecting disturbing or warning signs. So, to guide you through this love labyrinth, we have collected seven red flags of a toxic partner.
Also, you’ll discover alternative green flags to search for in a potential significant other and cultivate in yourself for your own wellness.
And if you want to practice self-awareness and banish toxic connections for good, get the Headway app and enjoy your pocket-sized collection of top expert tips!
Quick summary: Top five relationship red flags at a glance
Lack of trust and excessive jealousy.
Gaslighting and manipulation.
Inability to apologize or compromise.
Hot and cold behavior (love bombing).
Possessive behavior and isolation.
Keep reading for the full list of warning signs!
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Seven critical red flags in relationships you should address right now
In the beginning, love feels great. It is easy to ignore small problems because you are happy. However, some behaviors are more than just small mistakes. They are warning signs that things might get worse.
If you feel uneasy or find yourself making excuses for your partner, it is time to look closer. Addressing these issues early helps you stay safe and keeps your mental health strong. Here are the seven signs that require your immediate attention.

1. They are overly jealous and don't trust you
Your following list becomes a stack full of cases for arguments, and your messages become the most desirable thing to read.
Moreover, your partner is not just jealous of old friends or new relationships and people in your life — your exes also become a hot topic.
You just get no trust when there are no objective reasons to cause it, although everyone is entitled to total privacy and personal space no matter what.
Instead: An emotionally mature person trusts their partner and respects their privacy and boundaries. They are confident and secure, not clingy; therefore, they don’t see everyone as a threat to their relationship.
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2. They treat everyone poorly, but you
“All my exes were crazy,” “You’re not like other girls/boys,” and such stories are common red flags that apply to this genre.
It might seem flattering when your partner puts you on a pedestal, but it won’t be long before the hormones wear off, and they will treat you as badly as others — a major red flag.
So, they should pay extra attention to how they interact with other people, especially their subordinates.

Instead: You can’t adore every person. However, being tolerant and respectful towards others despite their differences is a trait we should all strive for.
📘 Learn to trust your gut and validate your feelings with Headway!
3. They have no friends
It’s a distinctive and serious red flag when a person can’t maintain long-term friendships that have no objective benefit.
Even more so, if they then expect you to fulfill all their emotional and social needs, it’s just a bomb waiting to explode.
Instead: Look out for a self-sufficient person who will not put all their eggs in one basket, i.e., you. After all, a healthy relationship is not about two halves that complete one other.
It’s a union of two unique personalities who complement each other that makes for a healthy, long-term relationship.
Did you know? Mature adults seek only about 25% of their needs from their partner. The other 75% they get from self, friends, family, career, and hobbies.
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4. They gaslight you
Shortly, gaslighting is a way of emotional manipulation in an unhealthy relationship. It’s when a person makes you doubt your reality, memory, and feelings and twists the truth.
They can call you names, disregard you as overly emotional or too sensitive, and deny that some of their actions happened.
And even if you confront them with factual proof, it might end up in a classic “Believe what you want” or other ways to discredit you.
So, if such behavior rings a bell, your red flag goes up.
Instead: Your s.o. should be your greatest supporter and believer, especially when it’s you doubting yourself. You deserve to feel like your opinions are valid and not questioned all the time.
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5. They don’t apologize or compromise
The ability to apologize is one of the pillars of healthy communication because conflicts are inevitable.
And if your partner never admits to being in the wrong, it’s a bad sign, a dealbreaker.
Especially if the only form of apology they’re capable of is “I’m sorry if I hurt you” or “I’m sorry that you feel that way.”

Another red flag is the inability to compromise. Especially if it involves replying to all your concerns with manipulations such as “Why don’t you just break up with me then,” or even the silent treatment, without considering your requests.
Instead: There’s no healthy relationship without a genuine “I’m sorry” and a change that follows. Your partner should not only say the magic words but also own up to them and compromise when a situation calls for it.
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6. They are hot and cold
Yet another manipulation to form a codependent relationship.
When your partner gives you regular rides on an emotional rollercoaster of pulling away and coming back, starting dramatic conflicts, and then showering you with love — love-bombing — it’s a bright red flag.
Such behavior gets you addicted to the highs that follow those hurtful downs, making it hard to maintain your self-esteem and even harder to leave an abusive relationship.

Instead: This might seem like a disappointment, but a healthy relationship is rather boring. Thus, it’s easy to see stability as a lack of passion.
But long-term, you’d want to come home to a safe haven and well-being and not a fighting merry-go-round of emotional abuse.
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7. They are possessive
‘This 60-40 isn’t workin’ I want a hundred of your time, you’re mine’.
If your partner guilt-trips you for having other priorities, like a social media account or spending time with your loved ones and enjoying a social life outside of the relationship, that’s a good old example of controlling and abusive behavior.
Such people tend to isolate their partner from others, even family members, to own them. And this major red flag would be your cue to run from such a person.
Instead: Let into your heart those who respect all your life priorities and don’t try to have you only by themselves. Such a partner will understand when you take a rain check for self-care and not turn it into a fighting match.
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What are red flags?
Think of red flags as the flashing sirens of a relationship. They are warning signs that show unhealthy or toxic patterns.While everyone makes mistakes, red flags are different because they happen over and over again.
It helps to know the difference between three main types of signs:
Yellow flags: These are small concerns, like a partner who is always ten minutes late. They mean you should slow down and pay attention.
Red flags: These are serious warning signs, like someone lying to you or trying to control who you talk to. They suggest the relationship might be harmful.
Deal-breakers: These are firm "no"s based on your values, such as one person wanting kids and the other not.
According to clinical psychologists, red flags are not things you can "fix" in another person. They are signals that the other person might not be ready for a healthy bond.
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Why red flags matter
Ignoring these signs can really hurt your mental health. People in toxic relationships often struggle with anxiety, depression, or even PTSD. Many red flags are also connected to narcissist tendencies and abusive behavior.
Statistics show that couples who ignore major warning signs early on are much more likely to deal with constant unhappiness or divorce. Paying attention now protects your future self.
The rose-colored glasses effect
Why do we miss these signs? Sometimes, we are just lonely or really want to be in love. Our attachment needs can make us hope the person will change.
This leads to denial and rationalization, which is a fancy way of saying we make up excuses for bad behavior.
There is a huge difference between giving someone the benefit of the doubt and ignoring a massive red flag. Trusting your gut is the best way to stay safe.
📘 Learn why you stay and how to leave with courage on Headway!
What to do when you spot red flags: Your five-step plan
When you notice a warning sign, you might feel frozen or unsure of what to do next. Having a plan helps you move forward with confidence.
Step 1: Trust your gut
Your feelings are real data. If something feels off, it usually is. Do not try to make excuses for why you feel uncomfortable.
Clinical psychologists say that taking these signs seriously from the start is the best way to protect yourself.
Step 2: Use the "3 red flag rule"
The first time something happens, take a mental note of it. If it happens a second time, start to look for a pattern.
By the third time it happens, you need to stop and think about the relationship. Ask yourself if this person is just having a bad day because of stress, or if this is simply who they are.
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Step 3: Set clear boundaries
Once you see a pattern, you must set clear boundaries. Tell your partner exactly which behaviors are not okay with you. Pay very close attention to how they react. A healthy partner will listen and try to change.
A toxic partner will get angry or blame you. Healthy partners adjust their behavior because they care, while toxic ones usually make things worse.
Step 4: Seek outside perspective
You should also seek outside perspectives. Talk to friends or family members that you trust. They often see things you might miss because they are not caught up in the romance.
If you feel stuck, talking to a therapist or a clinical psychologist can give you a professional view of the situation.
Step 5: Create exit strategy
Finally, you may need to create an exit strategy. If the bad patterns do not change, you have to be ready to leave.
Always put your safety first, especially if there is violence or substance abuse involved. You can use resources like support groups or hotlines to help you get out safely.
To decide what to do, ask yourself if you feel safe and respected. If your mental health is getting worse instead of better, it is time to move on.
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How do you find that green-flag partner?
Moving from one red-flag partner to another can make you want to give up on love. But a healthy relationship is grown through practice. To connect with the green-flag person, follow these steps:
Look at your history. Check for patterns in the people you usually date.
Focus on yourself. Work on your own habits so you become a great partner too.
Read expert advice. David Richo’s book, 'How to Be an Adult in Relationships,' explains how to build a mature bond.
Wait for consistency. A green-flag person is kind all the time, not just when they want something.
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Build immunity: How to prevent toxic relationships
To avoid getting into another bad relationship, you can build up your "immunity" to toxic people.
Self-awareness comes first
Look at your own history to see if you have certain patterns. Think about what you bring to a relationship and what your attachment style might be. Understanding yourself makes it harder for others to mistreat you.
Learn what "normal" looks like
You also need to learn what a healthy relationship actually looks like. Many people think a stable relationship is boring because it lacks the drama of a rom-com movie.
In reality, stability means you are secure. Studying green flags and healthy habits helps you set realistic expectations for love.
Work on self-esteem independent of relationships
Focusing on your own life is another great way to stay safe. Work on your self-esteem so that you do not feel like you need a partner to be happy.
Build strong friendships and keep up with your own hobbies. When you have a full life on your own, you are less likely to settle for a red-flag partner. Therapy can also help you heal from past hurts so you do not repeat them.
Ask hard questions early
When you start dating again, do it with awareness. Ask the hard questions early on instead of waiting. Watch how your date treats other people, like the waiter at a restaurant or their own family.
Pay attention to their patterns over time rather than just one good night. Most importantly, never ignore a bad gut feeling just because you have good chemistry with someone.
Building relationship intelligence takes time and learning. Books like 'How to Be an Adult in Relationships' by David Richo or 'Attached' by Amir Levine give you a great framework to follow.
Using Headway summaries makes these big ideas easy to get in just a few minutes, helping you learn faster.
📘 Learn to set boundaries that actually stick with Headway!
Essential reading: Top five books that transform your relationship intelligence
Learning about relationships is a skill you can practice. Headway offers 15-minute summaries so you can get the best tips without spending weeks reading.
1. 'How to Be an Adult in Relationships' by David Richo
Key insight: Mature adults get only 25% of their needs from a partner.
Why it matters: This stops you from becoming too needy.
Red flag solution: It shows why partners with no friends (#3) can become toxic.
2. 'Attached' by Amir Levine & Rachel Heller
Key insight: Your attachment style determines how you act in love.
Why it matters: You see why you feel drawn to certain people.
Red flag solution: Explains why "hot and cold" behavior (#6) happens.
3. 'Happiness is The Way' by Wayne W. Dyer
Key insight: Boundaries are a must for a happy life.
Why it matters: You gain the courage to say "no."
Red flag solution:Helps you handle bossy behavior (#7) and boundary crossing (#5).
4. 'The Body Keeps the Score' by Bessel van der Kolk
Key insight: Past pain changes how you act in current relationships.
Why it matters: You see why you might repeat bad cycles.
Red flag solution:Explains the roots of toxic bonds.
5. 'Why Does He Do That?' by Lundy Bancroft
Key insight: A look at how controlling people think.
Why it matters: You can spot danger before it gets worse.
Red flag solution: Covers gaslighting (#2) and blame-shifting (#5).
Headway makes learning about love and health simple and fast. Instead of spending days reading a thick book, you can grab the main ideas in about 15 minutes.
All the advice comes from books that experts and clinical psychologists trust, so you know the info is solid. It serves as a great way to test a book out before you commit to reading the whole thing.
Most importantly, you get real tips that you can start using in your life right away.
📘 Attract the green-flag partner you deserve — learn how on Headway!
Spot red flags right away with Headway book summaries
Noticing red flags in relationships is how you protect your heart. Knowing these signs helps you make better choices for your wellness.

Headway makes this easy. It gives you 15-minute summaries of the best psychology books. If you aren't sure which book fits your life, Headway acts as a guide. You can check out summaries for 'Attached' or 'Happiness is The Way' to see what helps you most.
Start using the Headway app today to see toxic patterns before they start. Your path to a better relationship begins with one short summary!
FAQs
What are the red flags in relationships?
Red flags in relationships are warning signs indicating unhealthy or manipulative behavior patterns. A clinical psychologist would identify these as behaviors showing lack of respect, lack of trust, gaslighting, possessiveness, or inability to apologize. Common examples include excessive jealousy, controlling behavior, emotional manipulation, and isolation tactics.
What is a biggest red flag in a guy?
The biggest red flag in a guy is often a combination of controlling behavior and lack of respect for boundaries. This includes possessiveness, monitoring your activities, or isolating you from loved ones. Clinical psychologist research indicates that men who exhibit narcissist traits, refuse accountability, or show early signs of gaslighting pose serious risks. Another huge red flag is substance abuse coupled with aggressive behavior, as this combination frequently correlates with escalating abuse patterns.
What are silent red flags in a relationship?
Silent red flags in a relationship are subtle warning signs easily overlooked but equally damaging to mental health. These include stonewalling (silent treatment), passive-aggressive behavior, emotional withdrawal during conflicts, lack of trust shown through micro-monitoring, and dismissing your feelings as "overreacting."
Why do girls love red flags?
The premise that "girls love red flags" oversimplifies complex psychological patterns. What appears as attraction to red flags is often trauma bonding, where inconsistent affection creates addictive emotional highs. Mental health research shows attachment issues from childhood can make toxic patterns feel familiar and therefore "comfortable."
What are 5 warning signs of an unhealthy relationship?
Five key warning signs include: (1) Lack of respect shown through constant criticism or contempt, (2) Gaslighting that makes you doubt your reality, affecting mental health, (3) Lack of trust manifesting as excessive jealousy or controlling behavior, (4) Inability to resolve conflicts healthily, with blame-shifting instead of accountability, and (5) Isolation from friends and family.
What causes toxic relationship patterns?
Toxic relationship patterns often stem from unresolved childhood trauma, attachment issues, or learned behaviors from dysfunctional family systems. Mental health factors including untreated conditions like narcissist personality traits, substance abuse, or anxiety disorders contribute significantly.








