On the surface it seemed that Tiger Woods had it all: a beautiful wife, two healthy children, wealth and unparalleled professional success.
But his admitted infidelity, which recently came to light, suggests something was missing.
"We find someone like Tiger Woods to have this great, glamorous life, but typically these people have a tremendous amount of distance from their wives and families," says M. Gary Neuman, marriage counselor, rabbi and author of The New York Times best-seller "The Truth About Cheating."
Their fame and success only "feed their infidelity," Neuman adds, making them feel powerful and invincible -- like they can get away with anything."
According to Don-David Lusterman, a psychologist and author of "Infidelity: A Survival Guide," Woods, with his apparently repeated infidelities, also fits the archetype of a womanizer.
According to Lusterman, a womanizer or "Don Juan" is a man who "has probably always objectified women and uses a woman as a quick fix for his ego."
"This is probably a man that shouldn't have married in the first place," he says.
But infidelity is certainly not a crime exclusive to the rich and famous nor, contrary to popular belief, is it predominantly a man's offense.
"To say that this is a man's problem is not true," Lusterman says. He sees about equal amounts of male and female infidelity in his practice, and while the terms "womanizer" and "Don Juan" may apply only to men, he says, " I do treat some women who are 'Donna Juanas.'"
Whether superstar or Joe Schmo, cheating is an unfortunately common issue and one that often leaves those cheated upon haunted by the question why.
ABC News contacted marriage counselors and relationship experts to shed some light on the psychology of cheating why we do it, why we think we can get away with it, and what makes us stick around (or split) when it happens to us.
There are many factors that lead people to cheat whether emotional, physical or circumstantial.
But surprisingly, the majority of the time it's not about the sex, Neuman says.
From his research on faithful and not-so-faithful men, he found that 8 percent of cheating men said that sexual dissatisfaction at home was contributing to their cheating, while 48 percent said the No. 1 reason given for cheating had to do with emotional dissatisfaction in their marriage.
What's more, 88 percent of men who cheated said that the woman was not-better looking or in better shape than their wives.
According to Neuman, the idea that being beautiful and great in bed will guard a woman against cheating is a myth. Instead, the cheating has a lot more to do with disconnection.
"We focus on the sex when we should focus on letting the emotional energy flow outside the marriage. The sex is just a symptom of taking the emotional connection further."
Most cheating stems from feelings of insecurity or vulnerability in the marriage that make an affair seem like an appealing escape, experts say.
"People aren't prepared for how lonely and misunderstood they can feel in marriage," says Janis Abrahms Spring, a clinical psychologist and author of the best-selling books "After The Affair" and "How Can I Forgive You?"
At that moment of vulnerability, if "someone comes along that says 'You're gorgeous and wonderful' and makes you feel a hell of a lot better than your marriage is making you feel," it can be easy to fall into an affair, Lusterman says.