The answer is:
to develop a contrast between the two sons of Madame Lebrun.
In the excerpts from "The Awakening," the author Kate Chopin makes reference to Madame Lebrun's two sons, Robert and Victor. She describes a scene in which Robert offers his mother some soup, goes into the kitchen and brings it to her with a few crackers. On the other hand, Chopin provides an account of Robert's brother, Victor, whose bad temper and stubbornness makes his mother furious.
The quintessential quality to making a friend is to be accepting of others for both their positive and negative characteristics. Friendship making is something that requires both interest and initiative. In order to improve your ability to make friends, you must accept what is appealing to you and what is appealing to others in making a friend.
The two excerpts that best reflect Gregor's isolated condition after his transformation are:
1. He got into the habit of closely watching it for one or two hours before it was opened and then, lying in the darkness of his room where he could not be seen from the living room, he could watch the family in the light of the dinner table and listen to their conversation—with everyone's permission, in a way, and thus quite differently from before.
2. Gregor never responded to being spoken to in that way, but just remained where he was without moving as if the door had never even been opened. If only they had told this charwoman to clean up his room every day instead of letting her disturb him for no reason whenever she felt like it!
The excerpts are taken from 'The Metamorphosis' by Franz Kafka. The above two excerpts reflect how Gregor's isolated condition was after he transformed.
For instance, he used to spend time in his dark room, watching things for hours without him being watched by anyone else. Also, he never liked communicating with any of his family members.