Revelation (For Christopher)

Six days pass until Christopher is able to return to the letters. He counts forty-three of them, and begins reading them. He makes it through three. The fourth letter we are shown is left unfinished, because Christopher does not make it to the end before he realizes he has solved the mystery of the letters, and revealed an awful truth. His mother was alive. She is living in London. She had been sending him letter since she’d split up with Christopher’s father. Christopher goes catatonic with the shock of his Father’s lie, and vomits on himself. When he comes to, his father is back from work. His father tries to explain, but Christopher is still too shocked. He is aware enough to remember his father’s words, but he cannot respond. It's clear that his father did this to protect Christopher, but one wonders what would have been the better choice. Clearly Christopher's mind does not work like the neurotypical's. Would Christopher have minded at all if his mother suddenly moved out? On a moral level, his Father was wrong, but what consequences would simply letting Christopher experience the events of his parents' separation unfold naturally have had?