Most people assume the hardest part of leaving a chaotic relationship is the leaving. A 34-year-old veterinary technician in Albuquerque assumed this too. She left her ex after three years of screaming matches, silent treatments, and the kind of reconciliation sex that felt like surviving a natural disaster together. She moved into her own apartment. By a few months later, she was dating a man who did something she found almost unbearable: he called when he said he would.
She sat in her car after their fourth date, gripping the steering wheel, trying to name the feeling crawling through her chest. It wasn’t relief. It wasn’t happiness. She described it to her therapist the following week as a kind of nausea she couldn’t explain, a wrongness in her body that made her want to text her ex just to feel something recognizable again.
Her therapist didn’t flinch. She told her the word for what she was feeling wasn’t heartbreak or confusion. It was withdrawal.
The comparison sounds dramatic until you look at what’s actually happening in the nervous system. During cycles of abuse and reconciliation, research suggests the brain doesn’t distinguish cleanly between danger and love. When the person you rely on for safety is also the person hurting you, the brain can begin confusing what is healthy with what is familiar. The nervous system may start to blur the line between safety and danger. People begin to think: if I stay, maybe the kindness will come again.
That kindness, when it does come, arrives on the heels of threat. And that sequence matters enormously. Right after a conflict or an episode of cruelty, the abuser offers tenderness, and studies suggest the brain may release dopamine and oxytocin together, in a burst that feels less like comfort and more like euphoria. The relief becomes the reward. As trauma specialists have described it,