The ending in “The Gilded Six-Bits” displays a reality that some marriages go through, that, if strong enough, the forgiveness that Joe demonstrates and Missie May’s continuation of the wife role helps bring the marriage together again.
I am not so sure if I were in Joe’s shoes, that I would have reacted in the same way. To find the love of your life in the arms of another, having an affair. I can only imagine the deluge of feelings he must have felt.
Missie May is wrong for what she did, Joe is also in part to blame, as is Otis D. Slemmons, a venomous snake that was fooling everyone with his “rich” façade while lusting after other people’s wives. Joe’s reaction to the affair is that of great restraint, and, once the baby is born, his reaction towards his wife and the baby is that of unconditional love.