premise: Even that young , Peter had realized where the anger came from , why Nathan was only ever truly angry with a few people around him , why he was always far more upset ( emotional ) with Peter than anyone else . Peter 's always known one thing for sure in his life , one utter certainty and that is the simple fact that Nathan loves him , completely and totally and despite everything , it 's the one thing that he 's never once doubted . The hours before the explosion ( his mother and his brother and the doubt that had crept in ) had shaken that belief but his brother had pulled through , had been the man who had checked him for injuries years before . What does your brother behave this way towards you ?
hypothesis: he does not like seeing his family and gets annoyed when he has to