chp. 10

In chapter ten, The tattered man is still following Henry. They leave Jim's corpse and the tattered man starts saying how he doesn't feel good but he's not going to die because his children need him to survive. Then he starts thinking that Henry is someone else and how he doesn't know why he's still alive because of his wound to his head. At this point Henry just tries to leave the tattered man even though he knows that he shouldn't be leaving him there to die.

-Why is the tattered man man talking all this nonsense?