When sammy decides to tell henry the truth about charlie, he immendiantly walks away only to be stop by henry, he tells sammy that its okay and that he is deeply sorry for not being a father to his only reaming child, to ignore his grief and that there wasn't a single moment in his life that he hadn't stop himself from blaming himself for everything he cuased to his son, every time he ignore his grief, everytime he came home drunk only to ignore him or lash out; but even one as a zombie he is grateful to tell his son how much he means to him and beg him to forgive him for being selfish all this time.