In Chopin's "The Storm," the fulfillment of passion and desire has a cleansing effect like that of rain on the marriages of the adulterers.
Alcee and Calixta, with a history of sexual encounter, find their passion reawakened when Calixta, scared by the storm, reacts by moving into Alcee's arms. The sexual descriptions would have been controversial enough in Chopin's day, but the approval the story grants to the encounter even more so.
Instead of her usual grouchiness and condemnation when her husband and son enter the house after walking through the aftermath of the storm, Calixta is welcoming and warm, fulfilled by her passion. Alcee, too, is loving to his wife, and tells her to stay away on her vacation for longer than planned if she'd like to.
Alcee's wife, too, finds marriage confining, and her vacation from her husband is welcome for her, too.
The story suggests that not only is adultery not harmful, but it is liberating and cleansing, and even necessary for a succesful marriage. The brief adultery is harmless, and even helpful.