Bo couldn't look up at Luke, not when he heard what Luke was insinuating. IN reality, neither boy could see a way out of the death grip Boss had on the farm and yet Bo wasn't willing to give up that eaisly...it seemed like Luke was. He knew that while Luke had been away in the war, it had given Luke a new perspective on life and the important things it contained. It gave Luke a view that Bo could never see unless something that drastic happened to him...but at the same time Luke had lost the ability to feel compassion and the other emotions Bo was feeling about the place.