OK. So when I was penniless, my therapist saw me for free which was very generous and big-hearted.

Today for the second or third time, she gave the example of how she has supported me by stating that she's spent $3k of her own money on my therapy. I think she means the money she spent on the room, not including paying herself iyswim. She said it was her free choice and she was happy to do so, but I don't know if that's really the case. I don't know if I'm supposed to say I'll pay it back (in installments) and I hesitate to offer because I think she'll think I'm chucking her goodwill in her face.

She's said the door slamming thing isn't how she expects to be treated as she is constantly bending over backwards for me, and now I feel on the back foot. I don't think storming out and banging a door is a good way of handling a situation at all, but I feel...stupid, or something, for not realising that she still feels she is over extending herself, though I pay now, and that maybe I'm not grateful enough in her eyes.

Should I offer to pay her back? How do I bring it up in a way that doesn't get her back up?