I really sympathise, the effect of toxic people can be tremendrously powerful. Still, I guess you need all hands on deck, ie all the help you can get to detox eachtime you need to!
I wonder, there could be a thin line between an extreme pd and a mental disorder like alziemers, like the pd gone berzerk!

it sounds like potentially a huge learning, in finding ways to detach, (not that anyone would recommend it if there was a choice), thats the most positive thing I can find to say.

all the best with it.