No one knows for sure how many married people have affairs. Statistics vary widely, from 10% to over 50%, and based on self-reporting, which is notoriously unreliable. Clearly, though, cheating happens all the time. Based on anecdotal evidence, and the sheer volume of couples in my office who are struggling with adultery, I’d guess that the percentages are near the highest point—or about half of people in relationships. If cheating (which can range from getting your emotional