He hates me and i don't know why.?

If a boy says that a girl has no heart... you can be pretty certain that she has his. It could be that he doesnt hate you at all. He may like you and realize he doesnt stand a chance with you. So, instead he acts as if he hates you. My mom always said "Kill'em with kindness. No matter how mean they treat you, be kind. It messes with their heads!" Good luck to you.