I think maybe you sort of put yourself out there to be upset about these sort of things w T (not on purpose). If you know she doesn't answer (or doesn't like to answer) questions about her family, you know by asking that you probably won't feel satisfied. I can be way off base here, so please let me know if I am.

I agree that it sucks that you can't know everything your heart desires about your T, but maybe if you journaled about those curiosities, or maybe go to session with the question of why do I feel the need? And what can I do to lessen it?