You don't owe her anything and you don't owe anyone anything.

While it might be true that you have issues you need to work with, it's best to do so with someone professional enough not to throw fits like this therapist did. You don't have to accept an unprofessional and hurtful behavior from the therapist just because she did something helpful in the past. That's not how things work in "real life".

In real life you don't need to accept mistreatment from anyone, and in your relationship with this woman you were clearly mistreated because she abused her more powerful position in the relationship.

To end the relationship the way she did might have been appropriate in the different kind of relationship but not in this one.

She is a professional, and even if you were truly abusive to her overall, as she claims, she should have referred you to a new therapist in a professional manner and not like she did.

I seems to me that you are beating the dead horse by not accepting that she can be of no help to you from this point on.