I'm attracted to my physical therapist?

so it makes things a little bit awkward when I go to my appointments. I'm not even sure if he's single or not so I don't want to like flirt with him. I get the feeling he's attracted to me just from a vibe I get from him. He's always asking me questions about my work and other random things like what time do I go to sleep because I work 3rd shift. He usually always makes good eye contact with me when we talk. How should I find out if he's interested in me without making things awkward? Or if he's single?
I'm attracted to my physical therapist?
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