The affair goes on for many decades for the cheating husband and his "great love" till they are all old.
I saw the movie BACK STREET for the first time and I always wonder if the love was so "great" why wouldn't he divorce the woman he was cheating on to marry or live with the woman he was cheating with?
Where is the honor for the one who cheats despite the "great love"? And the one cheated with devotes an entire life to having crumbs rather than the entire cake? That is enough? And the wife who is cheated on? If she knows and stays then her need for money/prestige is greater than her need for honesty/integrity. And she can always take a lover too. They all lose it seems to me. I see no advantage there anywhere. Do you?