My pwBPD went off antidepressants and is completely unmanageable

Hi everyone, just looking for a shoulder to cry on and maybe some helpful advice.

My wife of 25 years has BPD/NPD. She's very high functioning and very successful at work. She is as far as I know undiagnosed, we've never talked about it . She's been seeing therapists all her life so I don't know what they tell her. We went through 4 couples therapists together and she fired every one. I continued to see each one after for a few months because I thought they pretty good. And each one, independentaly and without talking to the others, said that she was on the cluster B spectrum.

She's always been in antidepressants since I first met her. And always still typically moody and difficult in that BPD way. She recently decided that she didn't want to take them anymore, and so weaned herself off them with her psychiatrist's help. She's now self medicating with marijuana. And she's completely unmanageable. Walking around in a rage, an anxious mess, constantly fighting with me about the most trivial of things. And she won't even entertain the idea of going back on her meds.

I can't deal with her anymore and I don't know what do to.