Wow! Most people divorce at the one year, three year, five year, seven year, or twenty year point. But 40?
There is a final burst of divorces within 2 years after
Both Spouses are retired
For the first time they are persistently
in the same place, at the same time
Underfoot, Interfering, Etc.
Women often deal with it by
"Encouraging" their husbands to get a hobby... Outside
Ya. By that time, it is why bother.