Totally agree that there needs to be a conversation. However, I would more strongly emphasize that "it should be an expectation". Based on even your article citing many statistics, it should be clear that people actually do "need" to "cheat". Just because you get married, it does not instantly remove your attraction to the opposite sex. You just agree to "suppress" that urge. But that urge is a "need" as much as air and water and food. So I would say we need to move the needle from being "weird" to being "expected", so that when someone gets caught doing something like watching porn or some other internet no no, it's not some big "surprise" which blows away the entire relationship because it was shallowly only based upon sexual fidelity.