What do you do when you discover your spouse has an insignificant other? How about when you realize your own insignificant other is becoming more significant than your spouse? There are no easy answers to these questions, but Stephen McCauley-"the master of the modern comedy of manners" ( USA Today )-makes exploring them a literary delight. Richard Rossi works in HR at a touchy-feely software company and prides himself on his understanding of the...