Why We Stay: A Therapist's Perspective on Getting Stuck in Unhealthy Relationships

One of the most common questions I get asked in my practice — "I know this relationship is bad for me. Why can't I just leave?"

The people asking aren't weak. They're not stupid. They're not "codependent" in the way the internet has flattened that word into a personality flaw. They are, almost without exception, human beings caught in patterns that took years to build and that activate some of the most powerful forces in human psychology. If you're asking yourself that question right now, the fact that you're asking it is actually the beginning of something important.

Why people stay:

The Hook: Intermittent Reinforcement

If there's one psychological mechanism that explains the most about staying, it's intermittent reinforcement. In behavioral psychology, this is the principle that the most addictive reward schedule is the one that's unpredictable — not constant, and not absent, but random.

A relationship that is cruel all the time is, in a strange way, easier to leave. So is one that's healthy. The relationship that keeps you stuck is the one where cruelty alternates with tenderness — where you're ignored for three days and then held like you're the most important person in the world, where you're insulted at dinner and complimented at breakfast.

Slot machines work on this principle. So do unhealthy relationships. The unpredictability creates a kind of biochemical dependency: every moment of warmth triggers a dopamine response that is stronger than it would be in a stable relationship, because your nervous system has been primed by the deprivation that came before. You're not chasing the person. You're chasing the relief of the cycle completing itself.

The Story You Tell Yourself

Underneath the neurochemistry, there's almost always a story. And these stories sound very convincing from the inside.

"They'll change." Sometimes this is delusion, but more often it's a sophisticated form of optimism anchored in evidence — the person really was different at the beginning. The early version of the relationship wasn't a lie; it was just unsustainable. You learned what they could be, and you keep waiting for that version to come back.

"It was my fault." Unhealthy relationships almost always involve some form of reality distortion — gaslighting, blame-shifting, DARVO (deny, attack, reverse victim and offender). Over time, you start to believe that the problem is your reaction, not their behavior. You become a forensic analyst of your own moods, looking for the thing you did to cause the explosion.

"I invested too much to leave now." This is the sunk cost fallacy, and it's devastating in relationships. Years together. Shared friends. Maybe children, a home, a life that would have to be disassembled. The cost of leaving feels unbearable, and the cost of staying feels abstract by comparison.

"I don't deserve better." This is the one that breaks my heart, because it's almost never true, and yet it lives in the bones of nearly everyone I work with. Somewhere along the way — often in childhood, sometimes in a previous relationship — you learned that love is something you earn through suffering, or that your needs are a burden, or that who you are isn't quite enough.

Attachment: The Wires You Were Born With

Attachment theory, developed by John Bowlby and expanded by researchers like Mary Main and Sue Johnson, helps us understand that we don't enter relationships as blank slates. We enter with templates — ways of relating that were shaped in our earliest bonds.

Some people develop what we call anxious attachment: a deep-seated fear of abandonment and a hyperactivation of the attachment system. People with this style often find themselves drawn to avoidant or unpredictable partners, because the pattern feels familiar — and because the highs of intermittent closeness are intensely validating.

Others develop avoidant attachment: a learned preference for emotional distance, which can manifest as staying in a relationship in a kind of numb, low-engagement way — present but not really in it.

Neither of these is a diagnosis or a life sentence. They're starting points, and they're remarkably responsive to therapy, especially approaches like Emotionally Focused Therapy (EFT) and schema therapy.

Identity Erosion

One of the things that surprises my newer clients is how much of themselves they've lost. They don't know what they like anymore. They've lost friends. They've stopped doing the things that used to bring them joy. Their inner life has been reorganized around the relationship.

This is not a personal failure. It's a feature of how these dynamics work. When you're constantly managing another person's emotions, monitoring their moods, anticipating their needs, you stop having the bandwidth to know who you are. And the less you know yourself, the harder it is to imagine leaving — because you can't picture a life on the other side. You don't know who would be waiting for you there.

The Cultural Stuff We Don't Talk About

We also have to name the cultural forces at play. The advice to "just leave" assumes a world with affordable housing, paid leave, accessible childcare, and no economic dependence. It assumes you won't be harassed, threatened, or worse. It assumes your family will support you and your community won't punish you. For many people, leaving is genuinely dangerous — financially, physically, socially. "Why don't you just leave?" can be a cruel question.

There's also the mythology of romantic love — the idea that true love means suffering, that jealousy is proof of devotion, that passion requires volatility. We absorb these scripts from movies and songs and our own parents, and they make it very hard to recognize a healthy relationship when we see one.

What Actually Helps

If you're stuck, here is what I would say to you, in the order I'd say it:

1. Stop asking "Why am I like this?" and start asking "What is this pattern protecting me from?" Shame keeps people stuck. Curiosity gets them moving.

2. Rebuild a relationship with yourself. Small things, consistently. A walk you take alone. A meal you make for your own pleasure. A class, a book, a phone call with an old friend. Reclaim one piece of territory at a time.

3. Talk to someone who is not in your life. A therapist, ideally, but if not that — a friend outside the relationship, a support group, a domestic violence advocate. Isolation is the soil this stuff grows in.

4. Let go of the timeline. Healing is not linear and leaving is not always a single dramatic moment. Sometimes it's a hundred small decisions over two years. That's fine. That's how it actually works for most people.

5. Hold this truth: The fact that you can name what's happening is not nothing. It is, in my experience, the place where every real change begins.

A Final Note

The work of untangling yourself from an unhealthy relationship is some of the hardest, bravest work a person can do. It doesn't usually look like the movies. It's quiet, internal, and slow. It involves grief — for the relationship you wanted, for the years you feel you lost, for the version of yourself that believed the story.

But on the other side of that work is something I've watched happen in my office hundreds of times: a person who is kinder to themselves than they used to be, who can recognize red flags early, who can stay present in a healthy relationship without sabotaging it.

That person is not a different person. They were there the whole time. They just needed some help getting out of the way.

If you or someone you know is in an unsafe relationship, please reach out to the National Domestic Violence Hotline at 1-800-799-7233 or thehotline.org. You are not alone, and help is available 24/7.