Seven years after our divorce, I went to my ex-wife’s house on Christmas Eve to apologize. But when she opened the door, a little boy appeared behind her with eyes that looked exactly like mine.

When I called, Wendy answered cheerfully and immediately began talking about the family holiday brunch she had organized. She assumed I was still at my base in Virginia and had no idea I was standing inside a hotel room only ten miles away.

“Mom,” I interrupted. “I’m in town. And I just came from Jessi’s house.”