"You must be getting something out of our sessions - you keep coming back." I think she want you to think why you keep coming back and why you feel angry about it.

It seems logical that you get something from your sessions and there is a reason you get angry.

It seems to me that what she wants or expects from you is not the issue. You obviously have very strong feelings around this. I would guess they are very uncomfortable. I have found that it helps if you can finds words/language to describe your feelings. I wonder if finding words and language here might not be a way to answer your T? Just a thought.