kite runner:chapter14--19

After finishing reading the kite runner from chapter 14 to chapter 19,in fact,I think it is really hard to say some obvious changes for Amir. However,we can also find some changes bout Amir.
First of all,I think Amir was braver than before. When he was young,I think he always very coward when he was teased by others or did other things. However,on chapter14,when he knew his Papa's partner----Rahim Khan was very sick,even though he was affected by what he had done,he still chose to back to Pakistan to watch him.
On the other side,from my point of view,I think he was still a little coward just when he was young. For example,on page 202,when Rahim Khan tried to tell something about Hassan,Amir said yes and murmured. From this,we can see that even now Amir had the courage to back to Pakistan,he was still a little afraid to hear about Hassan. And then,on page 223,when Rahim Khan told him that Hassan was his brother,he didn't handle it sensitively,on the contrary,he thought that his whole life was one big fucking lie(page223),and then, he could not accept the truth and ran out from the apartment.