Does Alzheimer's Excuse an Affair?

In her book about caregiving, Dr. Ruth Westheimer gives we caregivers permission to have an affair. There is something about this casual approach that I find offensive all round. It fails to understand the power of a true marriage. Do I miss lovemaking? Yes. Emphatically yes. But we are bound together by something greater than sex, greater than love, something so powerful it is beyond words.