Our Ask the Therapist columnist, Lori Gottlieb, advises a reader whose sibling moved away and then canceled a family trip.

A man has been slammed by the internet and experts alike for refusing to sleep in the same bedroom as his sister while on a week-long vacation with her and their parents. One ethics expert who spoke ...

Dear Amy: My sister and I don’t get along well. In fact, my sister doesn’t get along with most people. (Our mom always says, “You know how she is.”) I can put up with her behavior only in spurts. Her ...

Siblings are known for occasionally struggling to get along, especially in instances where they might have grown up sharing a bedroom. And, based on a recent Reddit post, it seems that this rivalry ...