Do married millennials cheat on each other?

Americans have been asked the infidelity question in every iteration of the General Social Survey, a broad questionnaire about cultural attitudes, since 1991. Wolfinger’s analysis found that in the early 2000s, 18-to-55 year olds were more likely have extramarital affairs than older people were. But right around 2004, the lines cross, and younger people became more chaste than their parents…

Wolfinger takes this data to mean that Ashley Madison’s days might be numbered. Today, the hot new thing for married couples, apparently, is having sex (albeit rarely) with each other until they die. “Barring any unforeseen developments,” Wolfinger writes, “we should anticipate a future of more monogamous marriage.”

Whether or not Millennials are doing marriage differently, they’re certainly changing other parts of courtship. Unmarried couples are more likely to cohabitate than they were a decade ago, and the once-fringe online dating scene has become as mainstream as dinner and a movie. Some people engage in polyamory, while others have open relationships, and more people are talking about those arrangements openly. Both marriage and divorce have become more rare since the 1980s. Between it all are an array of “fuckboys,” ghosts, and friends with benefits.