Why is my crush everywhere i go?

so i have this crush, and recently i see him everywhere i go for some reason, and no, i do not follow him everywhere if thats what you are thinking. Its like he't at places im at and he don't normally be at those places. But its like on certain days he do that. Its like one day he's do that then the next day he's with his friends and stuff. Another thing is that he also stares at me and smiles kinda but he doesn't like me.
Why is my crush everywhere i go?
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