The Principles For An Affair. People cheat for three reasons: to transition out of a wedding.

The Principles For An Affair. People cheat for three reasons: to transition out of a wedding. in which to stay a married relationship; or since they simply can’t remain monogamous. Robert Marquardt/Getty Images It constantly seems cliched: about to turn 40, hitched 15 years, two youngish kids; simply right right right back from a household…