My husband and I are celebrating our 40th anniversary with 12 of our closest relatives. Our house is modest, so I asked my son’s wife to come only my 9-year-old grandson and leave her other three children (13, 11, and 10) at home. My son readily agreed, and all three of them attended the party. However, she remained unusually quiet throughout the night.

The next day, I discovered a large box outside my door.I nearly fainted when I opened it and saw all of my possessions from my son’s house, where I sometimes stay. There was a message saying, “You’re not welcome to stay at my house anymore.” I chose not to react to prevent escalating the conflict.

However, the following day, my grandson contacted me in tears. He told me that his parents had a big quarrel and his father had left. I rushed to their house and halted when I saw how disorganized everything was. My daughter-in-law turned to me and said she wanted to leave my son because he would not stand up for her children.

She told me that what I done was wrong and that she would never forgive me for excluding her children in that way. After a few days, they still haven’t reconciled. Am I to blame here?