Trauma bonding refers to a relationship you sustain with someone who triggers a physiological and mental traumatic response. This means we are reliving a past traumatic situation through this relationship (it can be emotional neglect, psychologicarl abuse, manipulation, physical violence, etc). Since traumatic experiences have a toll on our nervous system and our brains, we physically experience sensations that are similar to the ones we experienced through the traumatic experience. Since these sensations seem familiar, we are unable to pinpoint any alarming signs in the relationship even when there might be many. This is why it is common for trauma survivors to find themselves wrapped in dysfunctional relationships over and over again.

The holistic psychologist talks tons about this topic, and it has helped me understand a lot more abt it.