Why Do Women Cheat?

Okay sisters. I am conducting a forum here at the University of Missouri on relationships. I have done my research but would like to provide some anecdotal information as well. So, if you have ever cheated or know of someone that, what pushed you to that point? Did you regret it? Did anyone know (besides you two) or find out? Needless to say the brothers provided some pretty interesting answers for why they cheated? And what drove them to that point. I am not here to judge but to provide a scientific observation of facts and opinions. That is all. Thanks for your assistance on this. Nathan