This guy invited me to church, but how do I know he's interested in me or even likes me?

Anonymous
So this guy who graduated three years before me saw me at a choir concert (because his best friend was in it). And after the concert he saw me and started giving me compliments and was hugging me constantly. Like no joke I got at least four or five hugs from him. And even though I never really talked to him when we went to school. He looked really attractive to me so I got his number.

So now I've texted/called him about two times but he's never initiated anything to me.

However I called him a couple days ago and while we were talking he invited me to his church. And we couldn't do it with an earlier Sunday this month so he asked if we could do it after he got back from vacation, and so we settled for that. And I even asked if he wanted to come to my church and he was like sure I've never really been to another church before.

However I asked him why he invited me later on that night and he said it was because his pastor asked the congregation to invite people to church and he wasn't sure if I had a church to go to. So I told him that was nice, and then he said that he thought I'd be great in the choir as well. So now I don't know whether he likes me or not. And if he does like me what should I do, or say. Now he is on vacation for the next week so I don't want to bother him, but what do I do? I'm puzzled because he may just be trying to be nice right?
This guy invited me to church, but how do I know he's interested in me or even likes me?
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