My crush is stuck in my head!!??

( I’m in 8th grade) so there is this guy I liked since last year and he used to talk to me a lot, tease me.. but when school started again, he didn’t really talk to me and barley saw each other. I would look at him a little bit when we pass by but never says hi..does he not like me anymore??? He is not currently in a relationship or looking for one. But I’m trying to forget so the memories doesn’t stick in my head and move on. I just want to look for friendship not relationships and sometimes he just pops up in my head a lot. What should I do? Any advice? Or can you relate....