Dear Abby: My 24-year-old grandson cut us off. How can we fix this if he won't say why?

Dear Abby: I am a 79-year-old woman who, over time, has suffered the loss of several family members. Now I’m facing the worst loss imaginable. A year ago, my 24-year-old grandson “Rafe” cut himself off from his father and from me.

Until then, we had been a close, loving family who did things together. Rafe and his girlfriend live rent-free in my son’s house, yet they refuse to speak to either of us. I’ve written and spoken to him, but he says that unless my son and I “change,” he wants nothing to do with us.

We are clueless as to what change he wants from us, and he offers no explanation.