Hey God, would you mind doing me a favor?

I just need you to remove the feeling of me being concern for someone. Help me care less about this person. Its kind of getting a bit hurting trying to be nice when it just doesn't seem reciprocated. Sure i have given up on the person being anyone special now, but why am i still concern? Is it possible for you to remove it? That's not possible? Why? I have to face it? Or do i have to run away? An answer would be good...