DEAR ABBY: My younger brother, “Paul,” is 40 and in a rut. He became friends with a friend of mine, “Mitch,” whom I met in college. Paul also became good friends with Mitch’s wife, “Iris.” After a year of close friendship, my brother made a pass at Mitch’s wife during a BBQ. He was promptly asked to leave, and they have ceased contact with him.

My brother made a pass at a friend's wife, destroying that friendship. They haven't talked in a year. The wife showed no interst in him, yet he's convinced she'll leave her husband. I've had enough. Should I cut him off?

My younger brother, “Paul,” is 40 and in a rut. He became friends with a friend of mine, “Mitch,” whom I met in college. Paul also became good friends with Mitch’s wife, “Iris.” After a year of close friendship,