“Marriage was an economic institution in which you were given a partnership for life in terms of children and social status and succession and companionship. But now we want our partner to still give us all these things, but in addition I want you to be my best friend and my trusted confidant and my passionate lover to boot, and we live twice as long. So we come to one person, and we basically are asking them to give us what once an entire village used to provide:.”