Do I have a chance with a guy that wanted me two years ago but now has a girlfriend?

Two years ago, I met this guy who really liked me. He pursued me for a little while and we were friends, but I really didn't get the point. After we stopped hanging out, I began to fall for him. Well, two years go by and somehow we keep in touch, but we rarely see eachother (we both lead busy lives). He resently introduced me to his girlfriend. The funny part is that I had no clue he had a girlfriend because he never mentioned her, not in the whole year they were dating. ( I should note that she made it clear that they had been dating for a year...and he was notably nervous when she said that). I don't think he would cheat on his girlfriend because he has had plenty of chances to cheat on her with me. But now he is calling me more often. The guy isn't really cute (when my friend met him, she said I would be the hottest girl he could ever have), but we both have the same interests and personality. I think he is smokin' hot and he makes my heart go really fast. Does he like me?