Women for the most part, not the entire demographic, are looking for an emotional connection. Men are driven by a physical connection. Physical is quicker, easier to find than emotional.
According to infidelity statistics online 30%-60% of married individuals will commit infidelity. More common under the age of 30. Men more likely to cheat than women. However, due to financial independence, more women are starting to behave like men with this issue. Office romances more of a common issue.
Men and women both cheat. Both have the same type lies and excuses. Tricks and lies however are individual traits. Are men better cheaters and liars than women? Or do women hide it better than men? I don't have the answer, but the truth is that infidelity is on the rise.