Well I switched schools this year and became good friends with this boy ( he's 12 and I'm 13 ) well about ones month ago he was telling people that me and him were in a relationship. And he does occasionally makes jokes ( I don't know if they are jokes ) about how much he likes me but he has a girlfriend though :/ could he be bi?

Umm that's dfficult... Maybe you should talk to him about it but my guess would be that he's just joking around

He's probably just joking around