Ask your current T. Tell him this other one is seeing former T's client to clear issues with her. It will be only two sessions, very specific. Ask what current T thinks about that. I did this at my T's suggestion when something happened & he thought a female T would be beneficial. He did ask for my permission to consult with her. Saw current T uninterrupted and saw her three times. Your current T may have reasons he doesn't think this is a good idea you haven't thought of or he may be happy you are taking control of your health. Everything above board. Sorry therapy has been a bad experience for you.