Think Living Together Helps Marriage? Think Again.

You're going to try your partner on for size. So, you live together. Well, first of all, we know that couples who live together are more likely to get divorced rather than less. We know that the probability of cheating is proportionate to the number of partners before [music] the marriage.

The best predictor of future behavior is past behavior. All right, so if you had a lot of partners, you're the sort of person who's likely to have a lot of partners. It's like, are you shopping for a car? >> [music] >> You're going to take it out for a test drive and see how it goes.

Here's another problem. I'm going to see what it's like to be married by living with this [music] person. It's like, no, you're not. Cuz you don't know what it's like to be married till you're married. Whatever you're doing when you live together, that's not a model for what you're going to do when you're married. Because being married is different. It's permanent.