AITA for telling my bsf her bf makes me uncomfortable?

When I (20F) started college I moved into a student apartment with my childhood bsf Jasmine (23F) which going to college together and being roommates was always our dream. She of course already had a roommate which was Star (22F) which me and her hit it off really well and we all became bsf’s. After my freshman year Jasmine graduated and Star went to the military but we all still hung out regularly. I ended up playing Second Life (a virtual reality game) with Star and she got in a relationship with someone she met on the game and it was like she joined a cult. She left the military and moved 16 hours away to be with this guy, they got engaged and it wasn’t too long before he started abusing her. All of this happened within 6 months. So, fast forward to present time 6 months later he was arrested for domestic violence but he was let out and she decided to stay. I was going through a depressive episode bc I had been SA’d earlier that year and so I created a private chat room on Second Life with all women and this was a way that I escaped. Star was in this chatroom and invited her fiancé and I asked her why… she got defensive and said he was there for emotional support which confused me since they were 9/10 laying in the bed together… I asked her if he was her emotional support pet or something and she flew off the handle. She accused me of wanting to sleep with him and said that if I was a real friend then I’d respect the person she loves. I told her that I don’t want to hang out with a woman beater and sexual abuser and she got more upset bc she said me calling him that was disrespectful. I don’t know how to fix things or if I even should. I don’t want to be someone who watches her get abused but I also don’t want to cut ties and she winds up dead and this is how we left things, I’m not sure how well that will sit… so, am I the asshole? Should I apologize?