A couple of months ago, I was sitting at a bar minding my own business when the woman next to me did something strange.
The rise of phone apps and online dating websites gives people access to more potential partners than they could meet at work or in the neighborhood.
The interview has been edited for length and clarity.
You have one of the most unique data sets about modern romance. Well, one of the first things you have to know to understand how dating — or really courtship rituals, since not everyone calls it dating — has changed over time is that the age of marriage in the United States has increased dramatically over time.
People used to marry in their early 20s, which meant that most dating that was done, or most courting that was done, was done with the intention of settling down right away.
And that’s not the life that young people lead anymore.