Think again.
Statistics from the American Association for Marriage and Family Therapy suggest that 15 percent of wives and 25 percent of husbands have had sex outside of their marriage. When emotional affairs or sexual intimacies without intercourse are included, the number jumps by 20 percent.
But straying is not inevitable, no matter how many soap operas you watch, says Frances Cohen Praver, PhD, a clinical psychologist and psychoanalyst in Locust Valley, NewYork, and the author of Daring Wives: Insight into Women's Desires for Extramarital Affairs.
"For the most part, people don't just go out and cheat. There are warnings," she tells WebMD. The good news is that knowing the common signs and addressing them head-on can save your relationship from infidelity.
Seven signs your spouse might be cheating
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