Should i break up with my boyfriend?

its the end of the year and my boyfriend just found out hes staying back!! i feel like we wont be able to have much of a relationship when were in different grades. ill see him in the summer a little and mabe after school next year but it dosent seem like itll work. i kinda still like him but i mean hes kinda immature. plus i feel bad cuz hes sad now and i dont wanna make him feel worse wich is whats holding me back from ending it. plus people are saying i have a stupid boyfriend and i try sticking up fr him but i tend to sometimes feel the same way :( plz help!!!! 10 points!!!