There is this boy i like and he likes me what do i do?

This boy likes me and i like him he has asked me out but i am not aloud and i would never go behind my parents back he always says he wil wait and sends me hearts witch i hate cuz i fell bad not to send them back my feelings are MADDD fro him and when i say some ones name i some times say hi i dont know what to do turn him down or let him wait...... but theres more he gose to another school but lives in the same town were the age but i hear he flirts with girls but he tell me its not true what do i do???