Who talks to whom? Who can’t stand whom? Who gets annoyed when one of them comes to visit us? They could be BFFs today and tomorrow stab each other in the back.

Dear Abby is written by Abigail Van Buren, also known as Jeanne Phillips, and was founded by her mother, Pauline Phillips. Contact Dear Abby at www.DearAbby.com or P.O. Box 69440, Los Angeles, CA ...