“I fell in love after seeing him in a dream

Like, there’s this guy in my class. Normally, he doesn’t really catch my attention. We’re not close or anything, we haven’t talked or interacted much lately either. But I saw him in my dream. I was sleeping in the classroom, and he had his elbow pressed against my waist—it actually hurt, like it was digging in. I didn’t even see his face, I just knew it was him. And for some reason, I liked it… Now he suddenly looks kind of attractive to me, and I keep wanting to look at him. This has happened a few times before too. It’s kinda weird, right? Does this happen to you guys as well? Also, what could be the psychological reason behind this?