Im going out with this guy but im crushing on another. what should i do

It isn't fair to you or your boyfriend to stay together if you're into another guy. Do you think you could still be friends with him even if you broke up? That way, you don't have to use him just so you won't be alone when school starts. If the other guy doesn't like you back, then don't leave your boyfriend for him, but you should think about leaving your boyfriend if you don't like him and he's immature.