I think she's just trying to walk you through what it means to be cared for, and you maybe aren't getting that yet.

Maybe she needs a different approach, maybe you need more work on it, maybe you need to work it out with someone else, I don't know. But based on the history of your posts here with her, I don't think it's anything as simple and crass as trying to guilt you about the money.

However... I think there is separate value in trying to pay her back. Even if it's just an extra $10 a week or something, or that you let her know you're paying it forward to a charity, so that someone else gets some of the benefit you did now that your financial circumstance is a bit better.

And as for the door slamming, could she have just been trying to set a boundary? Seems like a reasonable limit for her to set.... not because she saw you for free or anything, but just as a basic expectation.

If she is dealing with countertransference, a feeling that you've bitten the hand that fed you type... well, that would be different- up to you to decide since we weren't there.