More than half a million U.S. couples divorce each year. It’s hard to know exactly how many end as a result of adultery, but research shows that infidelity is not always a marriage breaker. Nearly 2.1 million marriages were reported in 2022, according to the Centers for Disease Control. In the same year, 673,989 couples divorced. While infidelity has long been a leading reason for divorce, it’s not always the top cause. Read on to learn more.