I cheated on my girlfriend when I moved 3,300 miles away across the country. I'm not even entirely sure why, except that maybe I was bored and wanted s** and never expected to still be in a relationship with her. It was very easy to do, incredibly sexually satisfying, neither of the two women know about each other, and I don't really feel that bad about it and have surprisingly little guilt. I know it makes me an a****** - especially because I would have a very sweet phone call with my girlfriend, then hang up and minutes later get my d*** sucked and have violent, awesome s** with the girl I was seeing. Everyone I know thinks I'm a sweetheart and such a nice guy. I never thought I would be able to do something like this, but now that I have I can see why it is so common. It's just the easiest and simplest thing to have happen. I know I will never tell my girlfriend, even if I break up with her, or if I marry her. It would do nothing but hurt her, for no reason.