Every once in a while I'll get curious about some aspect of T's life, for example I've been wondering if her degree in psychology enables her to "analyse" people in every day situations, or silly stuff like that. And today she mentioned that she lives alone, even though I know she has a boyfriend of several years, so I became really curious and was tempted to ask why they don't live together.
But can I actually ask her something like that...? The "analysing people" thing might be okay, but is the other question too personal?

Have you ever asked your T questions like that, just out of curiosity about their life?
I mean, they know and ask so much about us... and my T tends to self-disclose a lot anyway...