In chapter 12, what does Ralph say to the twins when they refuse to help him?

First, he feels frustration and anger, but quickly realizes that will do no good.  Then he tells the twins where he is going to hide with the implication that they will lead the hunters in a different direction.  Then, finally, he asks them what will  happen to him once he's found.  He goes from trying to talk them into helping him to acceptance of his fate.