"Folks on the verge of building those people monogamous commitments," Savage explained to me in just one of our numerous e-mail exchanges, "need to glimpse at the wreckage all over them - all people failed monogamous associations out there (Schwarzenegger, Clinton, Vitter, whoever’s on the address of US magazine this week) - and have a conversation about what it’ll mean if 1 or the other companion really should cheat.