Regardless of the opinion on seeing two therapists, the client should be given the option of choosing - not kicked out/terminated without a chance to choose. This still seems to me to be the therapist's hurt feelings and nothing to do with the client.
I am sorry you are feeling humiliated, but it is not your doing or fault. Your therapist failed you in my opinion. And terminating her authorization / ability to share information with anyone else is a good plan I believe.