omg I did actually once tell a T "I'm seeing someone else". I saw the new guy, a psychiatrist, in the morning, and quit the old guy, just a psychologist, in the afternoon. I TOTALLY recommend you do the same. Don't try to do this alone. Even if you end up just seeing this new person for a transition period, until you find "the best" T fit for your circumstances. Just find somebody safe for now. We are all on your side and hope the best for you.

actually I wouldn't even go back to your old T. if he is truly sorry, he can report himself. otherwise, what does he have to say to you that could possibly make any difference? I would be afraid to be alone with him now, but then i'm a little crazy.