(So I'm pretty sure I'm NTA here, but i gotta vent).

So obviously I left my abusive bf. We dated for 5 months, so it wasn't like it was a long term thing. The first red flag was about 3 months into the relationship when he got super drunk and got very verbally abusive with me (telling me that my estranged father was right for leaving me when i was 5 because he realized i was "a piece of shit kid", how my mom probably drank a lot because she realized i "wasn't worth loving", among other things i don't feel like revisiting). I left for about a month, and he swore to me that he had gotten into therapy and was working on himself to change. He begged and begged, "love bombed" me, and was really good for a few weeks. I ended up giving him a second chance. (i told him it was the last chance).

A month after that, it happened again, but this time it was worse - it got physical, he tore up two of my checks from work, stole my keys and kept me hostage in his house for hours, stole my phone, dumped water on my head, etc.

His dad is a big shot lawyer, so when I tried to run away to call the cops, he reminded me that I had been drinking, and since I was trying to drive away from his house, he'd have me in jail immediately. I was young and stupid for believing him.

I pretended to be sorry, and I slept on his couch. It was a de-escalation technique at the time. The next morning, I found my keys hidden in his ceiling (that was where he hid stuff), and I left. I blocked him. He started making fake accounts to contact me on social media, calling me from different numbers, and threatening to "destroy me". I finally went to the police and filed a restraining order.

A few months later, his sister told me that he has BPD and Depression, and that i should be ashamed of getting someone in trouble for having mental illnesses. I calmly told her that I'm sorry for his illness, but I don't need to subject myself to that. She stuck to her guns and said I have no "heart" because he is mentally ill.

Like, really?? I support mental health and I feel for people who are struggling, but I don't need to stick by someone like that just because he has issues. For only 5 months of seeing each other, I feel like I'm well within my rights to GTFO of that relationship. If it's my safety vs your mental health issues... I'm sorry, but I'm choosing my safety.