I know exactly how you feel. I always worry about what my boyfriend is thinking when he sees someone i deem attractive. But if you think about it, has there ever been a guy that you've seen that you have thought was pretty cute? Sure, you may not have wanted to get in his pants or anything, just thought that he was pleasant to look at. I really don't think there's anything wrong with looking at other people, even though it is really hard not to let those feelings get to you. Trust me, it happens to me everyday. Unfortunately we live in a society where women will be exploited on TV and out on the street. Just try to remember that he loves you and most likely you are a real human being, not a fake bimbo walking down the street. At the end of the day, it really is what's inside that matters most. Good luck with this, I'm sure everything will be just fine!