How does each family member react to Gregor after his transformation? How do their reactions differ from one another? What do they have in common?

Mr. Samsa, Gregor's father, is completely repulsed by Gregor's transformation. He, in spirit, has already disowned Gregor. The apple-throwing incident, in which an apple Mr. Samsa throws becomes lodged in Gregor's back, is the culmination of his hatred towards what Gregor has become.
Grete, Gregor's sister, is initially almost martyr-like in her devotion and duty towards Gregor, but being young and full of life, she quickly tires of looking after him, and starts to feel resentful toward him.
Mrs. Samsa, Gregor's mother, never falters in her love for him, yet she cannot bear the sight of him after his transformation. She faints whenever she sees his insect form.
What is similar in Gregor's family's reactions is the sense of relief they experience once they finally get rid of him.