I think you should listen to what you need and want to tell her. If you worry about her either talking to the T or to a superior or something like that, maybe ask about that beforehand, make an agreement that it won't leave the room or a similar thing? But if you feel that what your Pdoc said was right or that you suffer to some extend under what has happened, then one of the best things you can do is talking about it, in my opinion. So, if you feel the need to do that, then I'd try to get to a point where you're comfortable with that, which I don't think has to involve hurting your old T in any way and can be done entirely without that.