[CKDIWEQ]

Well only you know exactly what transpired and how you behaved, so this is just my advice going off what you posted. As long as you made it clear that you were ending the friendship for religious reasons, I don't think he would hold any grudges. I think that if you are nice and polite when you do happen to run into him, that is sufficient to make a person understand that you don't hate him. Also, most people prefer to forget unpleasant events, so if you really were mean to him, it's better not to bring it up. He is getting married, so he's probably happy. It's better not to risk spoiling that with memories of someone mistreating him (if you were even as rude as you think you were, which you probably weren't). So basically, I wouldn't worry about it if I were you.