I have some personal family experience with this- one spouse is put in a position of long-term care (or potential or expected long-term care) for a disabled or ill spouse. I really enjoy reading good examples of care, patience, etc… in the midst. The following story comes from the Desiring God blog.
Benjamin B. Warfield was a world-renowned theologian who taught at Princeton Seminary for almost 34 years until his death on February 16, 1921. Many people are aware of his famous books, like The Inspiration and Authority of the Bible. But what most people don’t know is that in 1876, at the age of twenty-five, he married Annie Kinkead and took a honeymoon to Germany. During a fierce storm Annie was struck by lightning and permanently paralyzed. After caring for her for thirty-nine years Warfield laid her to rest in 1915. Because of her extraordinary needs, Warfield seldom left his home for more than two hours at a time during all those years of marriage.
Check out the rest of the post.