The distance between the narrator and R is growing, even as R is more physically affectionate than ever. They can’t seem to agree on whether or not the narrator’s leg exists, which opens up a hole in their relationship and isolates them from each other. The narrator also seems to have the same passive attitude as the rest of the people in the town, and the fact that she denies that the world looks different than when R first went into the room shows that she’s losing her perspective.