I think it is hard with triggers. I don't believe triggers are for avoiding but for disarming. And, you can't disarm them if you don't handle them. Has anyone asked your T "why" she does things that trigger? I would assess her genuine attitude if I could, see if she's "trying" to help. It's very hard working with another person because one is not that person and all you have is "words" to work with them. I would try to have everyone discuss triggers with T and how to work with triggers and what one can do when triggered, etc. and see what everyone thinks after everyone is on the "same page" about the subject and understands what the therapist thinks. I don't know that it can get better with another therapist though if everyone isn't understanding where any therapist stands, haven't talked to the therapist and had real "conversations" back and forth, and knows the therapist is trying to help versus doesn't care.