@violet I'm not sure how much help I can be, but I'll try what little I (maybe, hopefully) can.
As far as I know, avpd has been researched woefully little, so there seems be very few established therapies for it.
I don't have a lot in coping mechanisms, it took me many, way too many, years to get myself to the point of trying to rebuild any bridges I burned. Even that happened mostly as a side effect of me feeling better, so while avpd didn't go anywhere, I'm able to at least try and fight it.
I guess experience is the best I might be able to offer right now. I burned many bridges, disappeared for years from peoples lives. I also was justified in being angry, I'm not denying that. But I personally regretted it every single day, and still do. I have managed to sort of rebuild some connections, but to this day it's hard. So at least in my experience, try not to burn those bridges, you might very well make yourself feel worse by doing that.
With all of this being said, I obviously don't know your situation. There might very well be some connections that should not only be burned, but also nuked from orbit. I'm just saying, really try to evaluate if it's worth it.
I hurt some people who are dear to me, and I despise myself even more because of that.
Edit. This might not be helpful, and for that, I am sorry. For now, it's the best I can do.
@Lunalucardrose20 mind bad 24/7, depression ramped up cause I am going off my meds so the things I do have to do don't feel enjoyable. Today's episode kicked me out of writing just as I was sitting down to do it for the first time in a week I think? Maybe less, idk. Now I just think I'm done with it altogether and the people I was doing it with. And it's so damn infuriating to feel like 5 months ago I could have understood the line of what was reasonable and what wasn't, and now that my brains got all fucked up and bonked around, I don't know which way is up anymore.
Bleh, sorry for the wall of text. I may be suffering from feel overflow 
@violet No worries, I'm happy to read walls of text coming my way.
Quitting meds is something I know all to well. Have a fair amount of experience with how fucked up ones brain can get during the process.
Hopefully you feel a bit clearer after the worst withdrawals pass. Maybe see things more clearly then, don't know. Always a possibility.
Hopefully enjoy things again. If possible, try to "allow" this time of difficulty to yourself. You are coming of your meds, you feel like crap. That's normal.
Sorry if I sound like a self-help book, not my intention. 
@violet not avpd but bpd here. I'd try to let some water pass under the bridges, by:
1- avoiding triggers (muting convos, going less social, switching to other support groups...)
2- occupying my mind until emotions decant (watch series, read books, do crafts, play videogames, sleep...)
Learning mindfulness meditation helped a bit but it's very long and there is no immediate improvement. If you have the room for it, it can be an investment to make for the long run, but I'd avoid trying it for the first time during an emotional crisis.
@violet I advice having different circles, this way you can vent into one if needed without causing a collapse of your relationships. It can be a forum, a discord server, a wow guild... whatever group you can be part of. This avoids a "all the eggs in the same basket" situations
Also, being angry is not illegitimate, it's just how you react to the emotion that can be destructive. I like to talk about the problems after my emotions settle, to address them instead of building up resentment