I think shows like Desperate Housewives, and the popularity surrounding them, are a sign of how endemic this has become in our society. Sure affairs have happened since marriage was conceived, but the level of acceptance of that behavior in a society is a reflection of a societies values.
These are issues which have been grappled with by the likes of Aristotle, Nietzshe and Satre. Scholars many generations from now may look back and see the beginnings of the downfall of our society. What we can do is no longer tolerate an open acceptance of this behavior. I feel we must stand for our spouses and our marriages.
ShawnL
So if you're tired of that same old story, turn some pages. I'll be ready when you are able, to roll with the changes. - REO Speedwagon