Q: Every so often, my ex and I end up at the same events (we're in the same industry). He always comes over to say hi. But he feels guilty. He gets flustered. And then it gets awkward, despite my best efforts. Any advice?

A: "Assuming you aren't doing or saying anything to make him feel guilty—and you'd prefer to keep your distance—then just do what you've been doing. There are some problems people have to work out for themselves, and his is one of them." — Jack Marshall, president, ProEthics

"If you're more outgoing, go over and say hi first. Part of his awkwardness may come from wondering whether he's welcome. You eliminate that issue by starting the conversation." — Rushworth M. Kidder, founder, the Institute for Global Ethics