My T said that he only takes on one or 2 borderlines at a time, as they are more demanding on his time and emotions, by nature of the beast. Although I am not diagnosed with BPD, I have my moments. My first T didn't even let me have a final session with her, because I think I wore her down too much and she became angry with me. At least your T recognizes the issue and is going to help you through it. Honest, she is just trying to help you...talk with her about it. Its not personal. They are people too and they have many more patients not just you, put your self in her shoes.