Returning to Afghanistan

When Amir goes back to Afghanistan, he learns of who Hassan really was. Amir learns that Hassan is actually his half-brother. Amir did not want to believe this at first, but Hassan and Amir being half-brothers allowed for previous events in the story to make sense. This explained why Baba had cared so deeply for Hassan, but a question that has gone unanswered is, why did Baba seem to like Hassan better than Amir? In my opinion, Baba liked Hassan because he was a lot like him while Amir seemed to be like his mother. What really had me thinking was, how could Ali have not said anything through all of those years? Amir told of how whenever a birthday came around, they were always able to get the present out of Ali, so how did Ali not betray this through all those years? Through this scene in the book, I felt pain for everyone involved. Ali had been betrayed by his best friend, which probably hurt him deeply, but he got to raise Hassan as his. Baba could never openly show his love for his other son and we, the readers, saw how much this pained him. Hassan lived his life as a servant, and he never learned who his real father was, or that Amir was his brother. The most pain I felt was for Amir though. Amir never even got to apologize to Hassan for standing by while Assef and his gang abused him. Amir also went years without talking to Hassan, and when he learns of his half-brother, he also learns of his death. Hassan and Amir had been so close growing up, they were always told it was because they had been fed by the same person. Maybe it was, but maybe they were so close because of them being brothers, even though they hadn't known this at the time.