Does this guy like me?

In high school I saw this guy and thought he was good looking. Now 15 years later I see him every Sunday and Wednesday in church and in the beginning I told myself I didn't like him and made excuses on why. Now after seeing him in church all the time for two years now I can't help myself anymore. I can't get him out of my head and I'm really shy and every time I get close in his proximity my heart races and I get all nervous and don't know how to act. Two weeks ago I emailed him and asked him a couple of simple questions for the first time and he didn't email me back. Then we had this fall festival and he asked me if it was me and I told him it was. He apologize for not emailing me back and that is where we stand. He is always busy with school so I don't know what kind of time he has. He is a really nice guy and says hi to me and gets information for me if I ask at church.