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.
The age of first marriage is now in the late twenties, and more people in their 30s and even 40s are deciding not to settle down.
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.
A couple of months ago, I was sitting at a bar minding my own business when the woman next to me did something strange.