Is Worried (again)

I have never felt such a strong and overwhelming combination of jealously, worry and sadness all at once. My boyfriend who lives in Iowa has a friend over today that's a girl. I know I should be more trusting, but since we've not been dating for a real long time, I don't know if he's the type who would cheat or not. I hear supposedly that guys are 60% more likely to cheat when in a long distance relationsip. Probably one of the reasons why long distance relationships don't work out very often. I can't stand feeling this way, it hurts and it makes me feel ashamed of myself because I want to be more trusting. I'm not going to tell how that I feel this way though. I don't to make him feel bad or give the impression that I'm one of those paranoid and over controling girlfriends. I cannot stand girls like that. Just because a guy has a girlfriend does not mean he can't be freinds with girls. I mean I have lots of guy friends, so it's only fair that he can have girls that are friends. But I still can't stop this feeling of anxioty. I only hope that things go well. But if he does fall in love with a girl who he can see in person, even though it will make me very sad, I won't stand in his way. I want him to be happy.