Okay, misleading title -- I have no idea whether your man (or woman) is unfaithful. But I do have some frightening news, AisleDashers -- according to a recent survey on MSNBC, 28 percent of married men and 18 percent of married women are guilty of cheating. Or maybe that's not such bad news -- according to the same survey, most people estimate that about twice that many people are unfaithful, perhaps because of the prevalence of infidelity in the media.

Interestingly enough, even though we all apparently think everyone else is cheating, very few of us believe we're the one's being cheated on. Only about 2 percent of cheaters were actually busted in the act, and most people didn't own up to the affair unless they were caught.

As far as why they cheated, most men reported it was for the sex -- either more, better, or just for some variety. Women were more likely to start an affair out of emotional needs or to feel sexier, or because they fell in love. However, women are much more likely than men to use an affair to get out of a bad relationship.

There is good news in all of this, though -- the primary reason people don't cheat is love of their partners. Either they love them too much to be unfaithful, or, even if they are sorely tempted, they are so afraid to lose their partners to risk the thrill of a fling.

For more survey results, click here.