I am wondering maybe it isn't the criticism, but perhaps because you don't see her regularly? Maybe she doesn't feel she can help you if you come in sporadicly?
Maybe she can't afford to have patients who aren't regulars?

If it is the criticism, she sure is thin skinned for a therapist!! You sound reasonable and calm…and fair to the other person. I've had T's who straight up didn't like me which is possible too.

But you don't deserve an ending like that!