I was going to post this in another thread, but I realized that I would (once again, heh) be derailing the threat. So instead, i'm starting my own thread. I'm going to disagree with you. I'm guessing your a guy, so i'm going to state why I believe a woman cheats. Before I state my opinion I would like to say this: depending on your sources, infidelity rates in US married couples will range anywhere from 25% to over 50%. This is married couples. These aren't just boyfriend/girlfriend relationships. Unless you're going to admit that half the population of the US are worthless pieces of shit (which could be the case), you should realize there are other alternatives. My opinions is as follows: Women live mainly by one thing - their emotions. They are emotional creatures, that's just how they're wired. You can't change this. For women, emotion will always come before logic. This isn't sexist, it's just the truth. So now you have a girlfriend and she cheats on you. You reason that she is a dirty bitch and has no self respect. Well, that might be what happened, in which case you should really look at what kind of people you date and how much time you put in to really getting to know them. But most likely what happened is this: her feelings took over her. She might have loved you, she might have not. You might have given her the craziest sex of her life earlier. But whether or not she was attracted to you, you can be rest assured that she cheated on you because she felt more attracted to the other guy. He had something to offer that you did not. She couldn't resist, and unless you're married, why should she? She has found the better mate. It's survival of the fittest. You just happened to be less fit. It's nothing personal. This connection that couples are supposed to share can be easily broken down, and it happends all the time. "But our relationship was going so well.. and... and..." Well, you didn't supply her with something that she needed and she did what her feelings told her to do - find what is missing and fill the void. (haha yeah pun intended). In conclusion, instead of placing all the blame on the woman for cheating on you, put some blame yourself for not supplying her for what she needed. Yeah, it might be shitty of her to do it, and not socially acceptable, and I know you're going to be heartbroken because you now depend on her for happiness in your life, but for you to deny her something that she needs could very well be considered worse.