"I've got to commit to this relationship or end it," said Tessa, sounding a little desperate. "I can't go one more day without making the decision." It was clear that she really meant this…just as she had the first time I heard her say it, eight years earlier.

Tessa is prone to ambivalence, a torturous condition that simultaneously pulls and crushes us between incompatible alternatives. Though it can make us say laughably absurd things ("I've known for eight years that this can't go on one more day!"), ambivalence feels anything but funny. If you tend toward indecision or face a problem with a number of equally good solutions, it can help to be reminded that you may have more options than you think possible.