Why do people always hurt the person who loves them most?

Because you picked the wrong boy to be with. If that boy trully loved you,he wouldn't treat you like that. He probrally was just using you and didn't love you.Some boys dont care about girls feelings, just their own.And they don't care if you love them or not they can treat you terrible. My advise is to just stop beign with him Your just wasting your time.