Sorry, guys: this isn't one of those "they get married and live happily ever after!" endings.
In "The Yellow Wallpaper," the (by now super-mentally ill) narrator has stripped off all the wallpaper in her room and is creeping around when her husband shows up at the door. She tells him that she’s free and that she’s liberated herself. He faints and she continues to creep around the room.
Some critics have argued that John’s faint demonstrates a moment of feminine weakness in the character of the story’s otherwise quintessential man. This provides a degree of balance to the story. The narrator attains liberation; John turns into a woman.
But...is the narrator really liberated? We’re inclined towards saying "no," given that she’s still creeping around the room and that her psyche is broken.