Becoming emotionally invested in another person means you've likely checked out of your marriage.

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Fact #7: A wife often knows her husband's cheating.

How could Tiger Woods's ex, Elin Nordegren, and Arnold Schwarzenegger's ex, Maria Shriver, not have known what their high-profile husbands were up to?

"Cheating usually occurs in the phase of companionate love, when couples begin to settle down, have kids and solidify the life being built together," says clinical psychologist Andra Brosh, Ph D.

While they're fulfilled in some areas, like being a provider, the romance may be missing.

If you feel that counseling could be helpful, please look up counselors available in your area.

Here, experts explain this phenomenon and dispel other popular cheating myths."His family was close to her family, so they never lost touch." Intimacy expert Mary Jo Rapini explains, "A lot of women think that all cheating women are floozies—not true.The relationships are usually friendships first." In fact, more than 60% of affairs start at work, according to Focus on the Family.Expert's opinion is limited to the information presented, and is to help you consider options; it is not and cannot take the place of a counseling session.By reading this, you agree that none of the experts offering information are liable for actions you or others take.They probably did, but couldn't bear to acknowledge it.