Having attended a catholic weding last weekend, and listened to all the "forever" crap, i see nothing wrong with decline of marriage as such. Apparently you are supposed to last thought everything, be it as simple as cheating all the way though alcoholism, abuse and mutulation. All in the name of love. Yeah, right.
My word, as a person, that I shall love my wife forever, is just as valid regardless of whether I say it in front of a priest in the church, or in the back seat of the car.