This book is a reasonable effort at shedding light on the possibilities and problems of coupledom in old age and/or retirement. It's not particularly remarkable to note that some marriages involve serial spouses (many marriages), are boomerang (marry, divorce, remarry same person), are throwback romantic (return to a past love), or have lasted a lifetime. Plenty of examples of all types are presented. It could be significant that the author's sample of marriages is highly skewed. Those she interviewed were invariably upper middle-class and professionals, in many cases in professions that permitted a great deal of flexibility and chances to control when one's working career is over or to move to related alternatives.
By far the most significant aspect of the book is her scattered discussions about the stresses of moving from work to retirement, involving either one or both marital partners. Changes in the primary earner can be especially problematical. With the structure of work gone, the intricacies of marriage move to the center of their lives. Cracks and incompatibilities, perhaps long dormant, in the marriage will invariably come to the fore when it becomes so important. As one would expect, the ability to communicate is foremost in overcoming hurdles, especially matters such as depression or sickness. In some cases, marriages become flat-lined, a situation where tolerance, appeasement, or a kind of standoff is achieved with no chance of an enjoyable relationship.
The author also discusses such matters as the changing capability of engaging in or enjoying physical intimacy. In addition, she contends that a network of at least ten close friends is necessary. She warns against the susceptibleness to infatuation, perhaps due to the realization of fewer years remaining.
The book is mildly informative and keeps the number of example cases at a reasonable level. Finding examples of marriages similar to one's own can be comforting, enlightening, or even a call to action. The author makes no scientific claims concerning her work. She does not indicate how her sample was selected and there are no reference notes. The author is certainly correct to note that we are an aging population. The issues raised in this book will become more and more relevant in our society.