Originally Posted by hyperskeptic
... I have reason to think our 12-year-old suspects more than that. She may be worried about it: whenever I mention the name of my new love, she gets very quiet.
To kids brought up on a diet of monogamy, a parent seeing someone else means cheating and probably imminent divorce. I'd prefer to tell them and prevent that worry rather than attempt to hide it and have them always waiting for the other shoe to fall. But I don't have kids, so take that with a grain of salt.