It is a collection of essays by Willem Lange of Etna, NH. In his introduction Lange gives a wonderful explanation of the essential role of a spouse:
"We need someone to disagree with us, to take an opposing point of view, to tell us now and then that an idea we have is a crazy idea, before we begin to think it makes sense. We need a little conflict to keep us sharp and sane. A spouse -- usually our complement in almost every way -- is uniquely qualified
and positioned to supply that: to, say, "That's nuts!" before we actually are nuts."
You can read an excerpt from this delightful book about the reality of "living happily ever after" on the U.P.N.E. web site.