Joe seems to regret his previous decision to leave Bruny Island. It is possible that he blames himself, as well as Dad, for Harry’s death, since Miles and Harry may have left their father’s house to stay with Joe if he had remained in town. Joe is now fully committed to taking responsibility for Miles, delivering an unspoken promise to his younger brother that he will not abandon him again and also demonstrating how blame, when handled maturely, can also be a way to work toward healing.