As for Buttercup, we see how she has been shaped by her training and isolation. She is quieter, sadder, more beautiful, and also at times bolder than she has ever had to be before, and when she pushes Westley down to the ravine as a punishment for mocking her heartache, we see also why Westley loves her. But she has hardened, lost much of her faith in love, and she breaks the entire crescendo of the story by returning to Humperdinck. The princess bride has blown her shot at love and happiness.
Many myths are demystified in this chapter as Westley peels away their intimidation tactics and defeats them. The Dread Pirate Roberts, once the terror of the sea, has fallen into Westley's palm once he revealed the extent to which must live. The Fire Swamp, though eerie, is manageable, and inside is ultimately safer than out, where Humperdinck and his men await the lovers. The reversals in this chapter are quite impressive, as nothing is done in its proper order: Inigo rescues the man in black from the cliffs before he attempts to kill him; and Westley abuses Buttercup before he reveals himself as her beloved. Everything is explained, and none of it is conventional.