No one here can tell you what to do for many reasons, two big ones being: (a) most of us aren't therapists and know the code of conduct for the association, licensing or any state-specific requirements inside and out and (b) we don't know your story and the relationship with your ex-therapist intimately and so, to offer any kind of advice or guidance, would be incredibly myopic and likely a disservice to you.

If you want my honest opinion with how little I know about you, your ex-therapist and your relationship, I would say that you shouldn't. You really crossed a line doing what you did and whether you agree with it or not, it sounds like she had a right to terminate. That's not to say what she did was ethical or what a lot of therapists would do, but there's a big difference between what's frowned upon in the profession and against the rules/law. And on top of it too, if you're wrong but go forward with it anyway, that's going to cause a lot of problems for her and likely be part of her record for life, whether she's deemed guilty of anything — and even if she is, it doesn't change that you can't work with her.