Y'know, every time in America some guy gets caught cheating, every media outlet does the same story: "Why Do Men Cheat?" Oh, take a wild fucking guess, would you? I think you're over-thinking this. They're not looking for fantasy, they're looking for... sex. That's it! They want sex. And not just sex; they want new sex. The way women want new shoes. Right? You have shoes, they're perfectly good shoes, you don't want those shoes, you want new shoes. We want a person, you want a shoe and somehow you're morally superior.

But I'm Not Wrong (2010)