Borderlines are survivors, they always get by somehow, even in the face of extreme chaos, chaos I personally couldn't handle and it amazes me, then again I haven't had a lifetime of practice.
I feel like i have to save her.
Best to focus on the fact that she will survive, somehow, some way, and while you're at it, focus on why you feel like you have to save her; there's plenty of growth in the answers to that, and maybe it goes beyond being a chivalrous man? You probably don't want to hear that right now, but it's really the only option, now that you've gotten off the roller coaster, and you're shifting the focus from her to you. Take care of you!