a major coping mechanism for dealing w/ abuse, esp in the longterm, is erosion of self worth. seeing yourself as worthy of basic respect as a human being is incompatible w/ surviving a lot of relationships emotionally
part of healing is rebuilding (or sometimes building for the first time) a sense of your own value. something painful that comes along w/ that is realizing how wrong the shit that was done to you was. when you look at your abuse after internalizing that youre not undeserving of any kindness, its completely healthy to be angry. thats an appropriate response to fucked up inequity
experiencing justified anger doesnt make you scary or a bad person, by any means. you deserve to be safe, and people who consumed you to sustain themselves deserve to be the subject of your righteous indignation