Crush on my Eye Doctor

So I went to a random eye glass place and ended up getting an eye exam. I instantly became infatuated with my eye doctor. He’s around my age, and we were laughing and having nice conversations (I know this isn’t out of the ordinary for a doctor to be nice and make conversation). I know it’s unprofessional but I never have to go back there again, also I’m a man and he’s a man and have no idea if he’s gay … but he could be ? Help…