Can a Marriage Survive Infidelity? Infidelity is breaking a promise to remain faithful to a sexual partner. That promise can take many forms, from marriage vows sanctified by the state to privately uttered verbal agreements between lovers. As unthinkable as the notion of breaking such bonds may be, infidelity is common. Dial 646 716-5525 and press the 1 button. www.blogtalkradio.com/wfunk