No one knows how many people are having affairs — many say the infidelity rate hovers around 20 percent although, let's be honest; people who are cheating aren't always
truthful about their infidelity (especially, evidently, women).
Which makes getting a handle on how many people are engaging in
infidelity really hard to do (in addition to the fact that a lot of people aren't always
truthful about what they're doing sexually).