Who do you think you are?
Sydney frowned. "I'm the one trying to be nice about this," she said. "I don't have to be," she said.
But this is my room! Jon insisted.
So that was it. Jon had claimed the room for so long, he thought no one else could have it...Well, two could play that game. She grabbed him by the collar. "This is my room. You only come in when I say it is all right, and you will sleep downstairs and if you complain about it, I will stay cross at you."
Jon blinked again as Sydney released him. He just wanted to get out of Sydney's room and be alone.