WATCH: 'What is chemistry?' Carolyn Hax and Paul C. Brunson answer dating's toughest questions

  The Washington Post Magazine’s Date Lab has been setting up strangers for years. The matchmaking has resulted in four marriages, one engagement and one bathroom exit (that we know of). But more often than not, the dates go something like this: The two meet. The daters have a good time. One or both leave without feeling […]