Care and Feeding July 10, 20261:00 PM Photo illustration by Slate. Photo by master1305/iStock/Getty Images Plus. Care and Feeding is Slate’s parenting advice column. Have a question for Care and Feeding? Submit it here. Dear Care and Feeding, My husband “Jeff’s” parents’ marriage ended just under two years ago after his father, “George,” left his mother for a woman half her age. My mother-in-law, “Iris,” is a lovely person and didn’t deserve this. Jeff has tried to maintain a relationship with both of his parents, but after an incident at our son’s 4th birthday party, I don’t want my father-in-law around for a good long while. George brought his new wife to the party without telling us. When Iris saw Little Miss Side Piece, she went after her, and they had to be separated. I think what Geo