I am a guy and I do this too. I thought it was because that is just how men are but then I realized like you it wasn't about sex. I have an emptiness inside. A void that doesn't seem to be filled. It goes away for awhile but when I go out of town I find my self searching for something or someone that isn't there. I think it's seperation anxiety. I just don't like to be alone. but I don't like making new friends. so scared I say something stupid or get to drunk and act an ***. I miss my old self. where did that fun loving kid go. I know how you feel. well at least from a mans perspective... or at least my perspective.