Is it normal to have a crush on a "stranger"?

This isn't really anything long being that it's about a stranger but, I've just been having a weird feeling about this guy that I've never talked to.

He's good friends with my neighbor (which I am not friends with), so I see him a lot not just at school but in my neighborhood. I never really thought much about how interesting he looks to me. Before you jump to conclusions: he is not exactly aesthetically pleasing. He is pale, has acne, and looks kinda geeky. But something about him makes me think he's flippin' adorable. I wish I knew him to be honest so I could at least have a chance. He's a year behind me by the way.

Have you ever felt a certain way about a stranger who wasn't "attractive"? Why did you like that person?

It might just be the fact that I don't fall for guys who are "popular" or "good looking" just because those guys don't usually have great personalities or ones that I could have a normal conversation with.

I don't know...I don't understand relationships or intimacy.