It's about a guy and girl who are friends as kids (they met on the school bus) and the guy had a crush on the girl but then they grow up and the girl becomes cool and the guy is still a loser. She becomes really popular and starts dating an older cool guy. The guy is pining for the girl and wishing that he could have her and that he was good enough for her. Basically, the singer's reflecting on his high school days with a mixture of relief that they're done and wistfulness.
It's about a guy and girl who are friends as kids (they met on the school bus) and the guy had a crush on the girl but then they grow up and the girl becomes cool and the guy is still a loser. She becomes really popular and starts dating an older cool guy. The guy is pining for the girl and wishing that he could have her and that he was good enough for her. Basically, the singer's reflecting on his high school days with a mixture of relief that they're done and wistfulness.