Hannah is missing school because one night, her father exiled her and her mother and Allison from the house. This was, obviously, somewhat insane. But it wasn't more insane or cruel than other things he's done, which is not to say he's insane or cruel all the time. He's himself; he can be perfectly pleasant; he's the weather system they live with , and all the behavior, whenever he is around, hinges on his mood. Don't the three of them understand that living with him simply is what it is? To complain or resist would be as useless as complaining about or resisting a tornado.
Hannah is currently absent from school due to a distressing event when her father exiled her, her mother, and Allison from their home. This chaotic situation reflects a pattern in his behavior, which can sometimes be pleasant, but is often unpredictable like the weather. Living with him requires an acceptance of his erratic mood swings, creating an atmosphere that can shift dramatically at any moment.
Hannah's perspective reveals a deeper understanding of her father's complex nature. She realizes that complaining about his behavior is futile, similar to resisting a natural disaster. This analogy highlights the emotional turbulence they endure, suggesting that their survival within this environment depends on their ability to cope with his volatile presence.