No, I just told him I didn't want to talk about that. He bumped up against a boundary and I told him. That's what happens in real life too. It is useful for him to learn of things that are difficult for me to talk about. It lets him know where sensitivities lie and perhaps areas for future discussion or work. But not right now. It also gives him a chance to demonstrate his respect for me and my well-being by dropping the subject and honoring my wish that he desist. And that helps build trust. It is also useful for me to learn to maintain boundaries. Your question suggested a person might change Ts because of one question from the T? I would suggest at least give saying "don't want to talk about it" a chance before quitting therapy. If the T repeatedly pries into an area that he has been told is off limits, then I can see moving on.