My ten-year-old grandson was left alone at the airport by my daughter-in-law while she boarded a flight with my son and her own children for a two-week vacation. Then she sent me a text saying she had decided he was grounded and should stay behind. I did not argue. I acted—and within three days, their perfect vacation was over.

The strain of the legal battle and the public humiliation began to tear Daniel and Lauren’s marriage apart.

Lauren blamed Daniel for not handling his mother. Daniel blamed Lauren for suggesting the "grounding" scheme in the first place.

I heard snippets of their fights when they came for the supervised visits, which I had insisted be held at a neutral community center. Lauren would pace the hallway, shouting about her lost commission, while Daniel would sit on a bench, staring at his shoes.

They were a pair of people who had built a life on superficiality, and now that the foundation was gone, the house was collapsing.

I didn't gloat. I simply watched from a distance. I was busy teaching Noah how to garden, how to cook a decent meal, and how to understand that he was worthy of love.

One day, I found a letter from Daniel in my mailbox.