It always boggles my mind when people say they don't even know if their therapist is married or not.

Anyway, you can ask, but if your therapist is so blank slate that you don't even know that basic information, it may be that she won't answer. On the other hand, she might.

The sober question might not get answered? I'm kind of curious as to why you feel the need to ask this. Are you seeing signs that she is not?