COMMITMENT

Susan Piver presents "The Hard Questions" for the post-honeymoon stage. Knowing what to ask each other (and yourselves) can help move your relationship to the next level. The author of the New York Times bestseller The Hard Questions: 100 Essential Questions to Ask Before You Say "I Do" offers up an exercise. "Romance can never last, but intimacy can never end," explains Piver, who created these 20 new "phase two" questions exclusively for Tango. She talks with us about her eye-opening exercise for anyone who has made a commitment—and is committed to making it last.

Even if you don't have billions laying around, take an example from Bill Gates, who was inspired by his wife Melinda to contribute to charitable organizations. Martha Baer explains how love can urge a person to better themselves by offering what they can to their community. There's a saccharine note to the claim that love makes people better—more generous, more open-minded—but there's truth to it, too. And couples will tell you that contributing to charity is a way of communicating to each other and to the world that they share values.