Quote 1
"Doesn't it look as if by removing his furniture we were showing him that we have given up all hope of his getting better and are leaving him to his own devices without any consideration?" (2.20)
Mrs. Samsa is perhaps the last member of the family to relinquish the idea that Gregor's transformation is irreversible. In this passage, she makes the case that Gregor is still deserving of their "consideration."
Quote 2
[His mother] caught sight of the gigantic brown blotch on the flowered wallpaper, and before it really dawned on her that what she saw was Gregor, cried in a hoarse, bawling voice: "Oh, God, Oh, God!" (2.26)
Gregor's "brown blotch" of a body is in stark contrast to the military portrait we discussed in Quote #1. Gregor's mother's response shows that to her, Gregor is a big brown stain first, her son second. She can't say anything to Gregor; all she can do is exclaim.
Quote 3
"Dead?" said Mrs. Samsa and looked inquiringly at the cleaning woman, although she could scrutinize everything for herself and could recognize the truth even without scrutiny. "I'll say," said the cleaning woman (3.31)
As in Quote #6 above, the cleaning woman seems to have an unusually close tie to Gregor, at least closer than his family. It's the cleaning woman, and not any of the Samsas, who definitively declares Gregor dead. Perhaps she has some special knowledge of who – and what – he is in a way that the Samsas don't, even though he's part of their family.
Quote 4
His mother, incidentally, began relatively soon to want to visit Gregor, but his father and his sister at first held her back with reasonable arguments to which Gregor listened very attentively and of which he whole-heartedly approved. But later she had to be restrained by force […] and cried out, "Let me go to Gregor, he is my unfortunate boy! Don't you understand that I have to go to him?" (2.19)
In contrast to Mr. Samsa, Mrs. Samsa seems to maintain her love for Gregor. She even defends Gregor when she thinks that Mr. Samsa is about to kill him (see Quote #8 under "Morality and Ethics"). But despite her maternal feelings, Mrs. Samsa is still unable to stomach the sight of Gregor.