DEAR ABBY: My daughter has graduated from high school. She had been in a residential treatment program for depression the year and a half prior to returning to this school. Her old friends had promised to be there for her when she returned. After she was back for three months, her friends stopped inviting her to things and even talked behind her back in a group chat that was started by a different group. The girls’ moms knew some of this was going on and did nothing about it. It has been a difficult journey for my daughter as well ...