It changed him as a person by the end of the story by him not believing in his god and not want to pray. He no longer considered himself a person he said he was just a stomach. He dehumanized himself through out the book.

His relationship with other humans changes in the way he communicates with them he stys clear of people when he is in the camp because he soon learned that it was every man for themselves. He was never any meaner to other people when he was not in the camp then when he was in the camp.