In "The Yellow Wallpaper," what does the narrator’s focus on the spreading smell of the wallpaper indicate is happening?

The narrator’s attention to the smell spreading through the house shows how completely the wallpaper has taken over her thoughts. She notices it everywhere and becomes increasingly preoccupied with it, indicating an obsession with the wallpaper. It does not primarily show that she distrusts Jennie’s housekeeping or dislikes the country.

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