Idk where to put this, so I hope this group is okay. But I just feel so trapped right now. Currently, I live in a basement suite with my SO and our two cats. Upstairs are my sister, brother-in-law and neice. Last night, my sister and BIL had a massive argument. Now they normally argue a lot, but this was really, really bad. So bad that my sister threatened to hit my BIL.

A little back story: when I was 5 or 6, my sister would hit me. I barely remember it, but I do have some jumbled memories.

Anyway, when I heard her threaten him like that...it really triggered my PTSD and I had a panic attack. I texted my mom to tell her to talk to her about it, but she doesnt realize just how bad it is. My sister is emotionally abusive, a compulsive liar, etc. None of which my mom sees. She's in denial about just how much my sister needs help.

I usually go upstairs and help my sister with her daughter (she's just over 1 year), but today I told her that I wasnt feeling well then she asked me to come up for a little bit so we could talk. I agreed.

So I get up there, and all she wanted to talk to me about was that she doesnt feel I'm helping out enough blah blah blah. She did apologize for the argument, but sh acted as if it was something small and not a big deal.

I just dont know what to do. I want to move out but my SO and I dont have the money for it. This is the best place for us financially right now.

I just feel trapped and idk what to do..

A part of me wants to cut my sister out of my life, but then I'd be like shunned by my family or something...idk...