It's nice to want to include your siblings in activities.
Billy is planning his birthday party with his mom when she asks him, other than his brothers, who he wants at the party.
Billy wants to respond to his mother.
Billy tells his mother that he wants to invite his whole class, so they better get started on the invitations.
Billy tells his mother that she assumed he wants his brothers there, but he doesn't, and he doesn't care who else comes.
Billy's mother is delighted that he's being so social, and he wants to invite everyone to his party.
Billy's mom is shocked that Billy doesn't care about anything especially his brothers and is worried about him.