Why has he become distant all of a sudden?

KrisRez
Okay so this pertains to the shy strange guy from before. When we talked a few times he was receptive but now it seems he's kind of avoiding me of some sort? I know he's not into me because I've talked to a source and has no idea that I had a crush on him.

I know he has his moods that have nothing to do with me as well. One day he says hi and the rest of the week he's in his own mind. I don't think I have said anything wrong. But I'm lost because I've tried to say hi or just crack a joke but I never seem to have the chance to. Is there any reasoning behind these actions or is he just having bad days constantly?
Why has he become distant all of a sudden?
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