I have just had devastating news: My 58-year-old second husband of two years has been having an affair with my 25-year-old daughter from my first marriage. I am in a state of utter shock. I had absolutely no idea that this was going on and feel heartbroken, betrayed, and furious at the two people I love most. They want to live together, but where does this leave me? I do not know what to do. Can you advise?