Dear Abby: My 18-year-old daughter recently broke up with her boyfriend. She caught him on the phone talking with another female, and there were other signs of his cheating as well. She’s devastated, ...

With cheating in a relationship, whether physical or emotional, it's typically clear when things have gone too far — but what about your partner seemingly turning up the charm for a friend or ...

A couple weeks ago, I answered the question of a person who had slept with a man and then later found out he was in a relationship. Because of the time between when she made her discovery and when she ...