How does Amir react to the news of Hassan’s death? How is Hassan’s death ironic? And explain why Farid does not like Amir at first.

Amir was furious at all of them for keeping the secret of Hassan being his half brother and Hassan's death. He screamed at Rahim Khan and left the apartment. Amir was obviously feeling many painful emotions at the time. Amir always felt he had let Hassan down, now he feels even worse. Farid resented Amir leaving to America while many others had to remain.