Stopdog generally doesn't understand why anyone would care about anyone I think- or at least she doesn't understand why clients and therapists would care about each other- so her question doesn't reflect on your situation I don't think. Anyway, I would also feel really weird if that happened and I wasn't told about it. How long was it going on before you found out? Could your new t be supervised by another t for your case? If I were you, once I found out, I'd probably constantly be feeling like I was talking to two people when I talked with my t. I'd probably be wondering how the t I was talking with was reporting it to the old t. I'd much rather that the supervisor was someone I didn't know.