What is the falling action in the story Sweat?

The falling action in "Sweat" involves Delia's husband, Sykes, being bitten by a rattlesnake that he had intended to use to kill Delia. As Sykes suffers from the snakebite, Delia chooses not to help him, symbolizing her final liberation from his abuse and cruelty. The falling action highlights Delia's newfound strength and independence as she moves on with her life.