Rube II: Meet The Solipsist
Of course, Elly is not the only one to assume hostile intent in children based on a lack of real evidence. One must also remember John and his fear of his daughter's bad moods. The impression I get is that he can't or won't admit that a bad mood can have nothing to do with him. If it doesn't have anything to do with him, that must mean that his child is ungrateful and seeks to diminish him by saying that people he doesn't know also matter.