I honestly think this is a big bunch of self deceiving bull, but it's always interesting to read the thought process behind an opinion the polar opposite of your own.
http://www.huffingtonpost.com/vicki-larson/why-men-need-to-cheat_b_1170015.html?ref=twWhat a depressing world this woman lives in IMHO.
Edit: For the TL;DR crowd- the author is claiming that monogamy is a "socially compelled sexual incarceration" that can lead to a life of anger and contempt for men. Basically women who punish men for cheating are controlling harpies fighting nature