[in spite of everything, he doesn't really want out anymore. At all. Not that he knows this truly and mentally. But the idea of going back makes his heart sink. What about all the discrepancies now? Since they were replaced, that means Birdman... didn't die now? He wondered what a Birdman in another world who didn't commit crimes was like. Was he nice? A kinder brother? Would he stay alive?]
But I cannot help but wonder if there was a reason that we cannot understand for this. From my point of view you were dead. If we went back, would you try what you were trying all over again and die? Rainheart and Rita did not survive either.