How was Calvin accepted in his home?

When Meg, Charles Wallace and Calvin get back to the Murry house, Mrs. Murry is busy in her lab working on an experiment, but she invites Calvin to stay for dinner. Calvin is enamored with the Murry house. He is received warmly by everyone. After he calls his own family to let them know he’ll be home late, he muses that Meg is really lucky to be loved like she is. His own family, he tells her, which has eleven children, rarely takes the time to notice him. He tells her that his mother doesn’t take care of herself and that nobody would even care where he was. The only reason he calls, he tells her, is that he cares and loves them.