Infatuations. Morally wrong?

I have an infatuation with this cop I met. He's so smart and handsome. I'm not going to try to have a relationship with him. I just think he is desirable. I told one of my friends about it. She told me that my feelings were morally wrong. She said that I should not objectify the cop like that. I don't see where she is coming from. Can some one please explain this logic? Thanks