is he interested in me?

I'm 19 and I visit the dentist with my dad frequently. My dentist (who is in his early 40s) knows I like him.On my first visit to him after my procedure i had with him, he knew that i liked him and seemed very flattered and happy. Right after the operation, he purposefully changed his normal procedures to give me a clear open opportunity to flirt/talk to him out at the receptionist desk away from the operating chair. But I didn't since I was too shy and embarrassed. A week later when I went back for my stitches to be taken off, he didn't bother to try to talk to me anymore since he thinks that i don't want to talk to him. then i noticed that he ogled at me a lot while he was operating on me. I was wearing an old low cut shirt at the time. It also wasn't that i wore it on purpose. He was ogling at my body especially my face while he was performing on me. I'm also not a pretty girl so thats pretty weird. what is he thinking? is he interested in me or his he just playing around?