Does he REALLY like me...?

so there's this guy I like/Love. We've known each other for 3 years. He ALWAYS teases me (and I mean ALWAYS) we've been in the same class for EVERYTHING (we still are in Elementary school after all) we we always talk. The thing is, I hate him & he hates me. He does talk/flirt with one of my 프렌즈 and she does the same to him. so last 년 he found out that i like him and it felt weird ever since. Today both my 프렌즈 told me when i was out of school one 일 he walked up to my 프렌즈 and told them he likes me. But i don't believe my friends. so.... can 당신 help? :)