Dear Annie: My daughter hasn't spoken to me in 20 years. "Linda" is 45 years old and has been married since around 1993. I wasn't invited to her wedding, so I am not sure. I think she received a master's degree, but I wasn't invited to her graduation, so I'm not sure of that, either. Linda's mother left me for her married lover when our daughter was 6. Instead of taking custody, I felt it best for her mother to raise her, which was a big mistake. My current wife enjoyed a good relationship with Linda.