For years I was unfaithful to my wife, and I swore she never suspected a thing. But the day I saw her holding hands with another man, I felt the same knife in my chest that I had been stabbing her with for years. Lauren didn’t let go of his hand. He smiled at her as if he already knew everything about her. And I, who had lied so many times without trembling, understood that betrayal hurts even when you’re the one who started it.

She didn’t yell. She didn’t insult. That made it hurt more. I took Paula by the arm, without force, just to lead her outside. “Don’t touch me,” she said. “It’s your child, too.” “I don’t know if it is,” I replied, feeling sick with myself. “But I will take responsibility for whatever is mine. Now leave. Today is my daughter’s birthday.”