Kim didn’t know what to do. She knew she needed to have a tough conversation with her sister, but she, a 33-year-old whose name has been changed to protect her privacy, didn’t know how. When her sister got engaged several years ago, she agreed immediately to be in the wedding party. She thinks the fiancé is a great guy, and she loves her sister. They had always been there for each other, and she was excited to stand by her side on this big day.