I have a huge crush on my Physical Therapist. help?

My Physical therapist is very attractive she is 25 years old. Been seeing her for about a year multiple surgeries on my knee. I am 24 years old. She had a wedding ring on when I first started going to her now I haven’t seen one on her at all, and on her Facebook I don’t see her wedding pics anymore and she took away her last name to just her middle name. Anyways we always talk conversation is always good and she seems very attentive and I would like to ask her to go out sometime maybe when I stop going to PT any advice? How do I ask if she is married or see if there is a husband in her life without making it awkward small talk? Please help!
I have a huge crush on my Physical Therapist. help?
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