Freewill, I at least hope the T didn't charge you for the session he had you leave. YOU are paying T for consulting, and it's your time, otherwise, he doesn't get paid. He has the right to ask, I guess, and not accept any abuse from any part of you (and could be trying to counter a particular one) but he can't send you away and charge you too.
Please make sure he realizes that not all of you hate him

If he is in over his head with DID, then it's up to HIM to study and research and train and get supervision if he's going to continue to try and help you.