Hassan did not do anything to Assef. Assef was racist towards the fact the Hassan was a hazara and ended up raping him on the last day of the kite running tournament after Hassan had refused to give up the last kite which he had run for Amir.
Hassan uses a slingshot to defend himself and Amir against Assef when he tries to attack them. Hassan ultimately sacrifices himself by getting severely beaten rather than giving in to Assef's threats.
Bullying Amir and Hassan. He hated Hazaras like Ali and Hassan and like Hitler's extermination, believed in killing them all. In the end of the book, Assef is the man at the stadium in white with the sunglasses. He "owns" Hassan's son, Sohrab and sexual abuses him. Assef fights with Amir and Sohrab shoots his eye out with a sling shot. Amir and Sohrab escape.
After Amir won the kite fight against the blue kite, Hassan ran to retrieve the losing kite for Amir. As he was running, he encountered Assef and his friends who brutally attacked and assaulted him. This event marked a turning point in the lives of both Amir and Hassan, fundamentally changing their relationship.
1) When Hassan is being raped in the alley by Assef, Amir runs away. He was afraid of what Assef would do to him if he stood up for Hassan. This is betrayal because Hassan continually stands up for Amir, when Amir doesn't so this in return. They are ment to be best friends. 2) Baba had an affair with Alis wife, Sanaubar. Baba is betraying his friend, servant and a person he called his brother. Baba was Hassans biological father, no one knew (other than Rhaim Khan) about this until Amir went back to Afghanistan to save Sohrab. So Baba not only betrayed his friend, but his own sons by not telling them.
Amir frames Hassan for stealing money and a watch, knowing that Hassan will take the blame to protect him. Amir stands by and does nothing to stop it, thus indirectly getting both Ali and Hassan in trouble.
Amir lied about Hassan stealing his birthday money out of a combination of jealousy and a desire to distance himself from Hassan, who was both his friend and servant. Amir felt pressure to conform to societal expectations and sought his father's approval, believing that accusing Hassan would elevate his status. This betrayal stemmed from Amir's internal struggles with insecurity, guilt, and a longing for acceptance, ultimately leading to a deep sense of remorse later in life.
He is treated in various ways by various different characters throughout the book. Amir treats him as a brother (ironic really) or anincredible close friend, though he doesn't realise the depth of his actions towards Hassan in a brotherly way when he is a child. Baba is surprisingly protective and kind to Hassan even though he is his servant's son, the true reason for this is revealed later in the book. Assef treats Hassan in a very racist and prejudiced way, perhaps almost as though he is an item rather than a person. Hope this helps a little. xx
Amir, a well-to-do Pashtun boy, and Hassan, a Hazara and the son of Amir's father's servant, Ali, spend their days in a peaceful Kabul, kite fighting, roaming the streets and being boys. Amir's father (who is generally referred to as Baba, "daddy", throughout the book) loves both the boys, but seems critical of Amir for not being manly enough. Amir also fears his father blames him for his mother's death during childbirth. However, he has a kind father figure in the form of Rahim Khan, Baba's friend, who understands Amir better, and is supportive of his interest in writing stories. Assef, a notoriously mean and violent older boy with sadistic tendencies, blames Amir for socializing with a Hazara, according to Assef an inferior race that should only live in Hazarajat. He prepares to attack Amir with his steel knuckles, but Hassan bravely stands up to him, threatening to shoot Assef in the eye with his slingshot. Assef and his henchmen back off, but Assef says he will take revenge. Hassan is a successful "kite runner" for Amir, knowing where the kite will land without even watching it. One triumphant day, Amir wins the local tournament, and finally Baba's praise. Hassan goes to run the last cut kite, a great trophy, for Amir saying "For you, a thousand times over." Unfortunately, Hassan runs into Assef and his two henchmen. Hassan refuses to give up Amir's kite, so Assef exacts his revenge, assaulting and raping him. Wondering why Hassan is taking so long, Amir searches for Hassan and hides when he hears Assef's voice. He witnesses the rape but is too scared to help him. Afterwards, for some time Hassan and Amir keep a distance from each other. Amir reacts indifferently because he feels ashamed, and is frustrated by Hassan's saint-like behavior. Already jealous of Baba's love for Hassan, he worries if Baba knew how bravely Hassan defended Amir's kite, and how cowardly Amir acted, that Baba's love for Hassan would grow even more. To force Hassan to leave, Amir frames him as a thief, and Hassan falsely confesses. Baba forgives him, despite the fact that, as he explained earlier, he believes that "there is no act more wretched than stealing." Hassan and his father Ali, to Baba's extreme sorrow, leave anyway. Hassan's departure frees Amir of the daily reminder of his cowardice and betrayal, but he still lives in their shadow and his guilt. Five years later, the Russians invade Afghanistan; Amir and Baba escape to Peshawar, Pakistan and then to Fremont, California, where Amir and Baba, who lived in luxury in an expansive mansion in Afghanistan, settle in a run-down apartment and Baba begins work at a gas station. Amir eventually takes classes at a local community college to develop his writing skills. Every Sunday, Baba and Amir make extra money selling used goods at a flea market in San Jose. There, Amir meets fellow refugee Soraya Taheri and her family; Soraya's father, who was a high-ranking officer in Afghanistan, has contempt of Amir's literary aspiration. Baba is diagnosed with terminal oat cell carcinoma but is still capable of granting Amir one last favor: he asks Soraya's father's permission for Amir to marry her. He agrees and the two marry. Shortly thereafter Baba dies. Amir and Soraya learn that they cannot have children. Amir embarks on a successful career as a novelist. Fifteen years after his wedding, Amir receives a call from Rahim Khan, who is dying from an illness. Rahim Khan asks Amir to come to Pakistan. He enigmatically tells Amir "there is a way to be good again." Amir goes. From Rahim Khan, Amir learns the fates of Ali and Hassan. Ali was killed by a land mine. Hassan had a wife and a son, named Sohrab, and had returned to Baba's house as a caretaker at Rahim Khan's request. One day the Taliban ordered him to give it up and leave, but he refused, and was murdered, along with his wife. Rahim Khan reveals that Ali was not really Hassan's father. Hassan was actually the son of Baba, therefore Amir's half-brother. Finally, Rahim Khan tells Amir that the true reason he has called Amir to Pakistan is to go to Kabul to rescue Hassan's son, Sohrab, from an orphanage. Amir returns to Taliban-controlled Kabul with a guide, Farid, and searches for Sohrab at the orphanage. In order to enter Taliban territory, Amir, who is normally clean shaven, dons a fake beard and mustache, because otherwise the Taliban would exact Shariah punishment against him. However, he does not find Sohrab where he was supposed to be: the director of the orphanage tells them that a Taliban official comes often, brings cash and usually takes a girl back with him. Once in a while however, he takes a boy, recently Sohrab. The director tells Amir to go to a soccer match and the man "who does the speeches" is the man who took Sohrab. Farid manages to secure an appointment with the speaker at his home, by saying that he and Amir have "personal business" with him. At the house, Amir has his meeting with the man in sunglasses,who says the man who does the speeches is not available,. The man in sunglasses is eventually revealed to be his childhood nemesis, Assef. Assef is aware of Amir's identity from the very beginning, but Amir doesn't realize who he's sitting across from until Assef starts asking about Ali, Baba and Hassan. Sohrab is being kept at the home where he is made to dance dressed in women's clothes, and it seems Assef might have been sexually assaulting him. (Sohrab later says, "I'm so dirty and full of sin. The bad man and the other two did things to me.") Assef agrees to relinquish him, but only for a price - cruelly beating Amir. However, Amir is saved when Sohrab uses his slingshot to shoot out Assef's left eye, fulfilling the threat his father had made many years before. Amir tells Sohrab of his plans to take him back to America and possibly adopt him, and promises that he will never be sent to an orphanage again. After almost having to break that promise (after decades of war, paperwork documenting Sohrab's orphan status, as demanded by the US authorities, is impossible to get) and Sohrab attempting suicide, Amir manages to take him back to the United States and introduces him to his wife. However, Sohrab is emotionally damaged and refuses to speak or even glance at Soraya. This continues until his frozen emotions are thawed when Amir reminisces about his father, Hassan, while kite flying. Amir shows off some of Hassan's tricks, and Sohrab begins to interact with Amir again. In the end Sohrab only shows a lopsided smile, but Amir takes to it with all his heart as he runs the kite for Sohrab, saying, "For you, a thousand times over.".
Hassan tells Amir about the dream they had as kids in order to reconnect with him and possibly bridge the gap that has formed between them. It is a way for Hassan to show his loyalty and affection towards Amir, hoping to rebuild their friendship and trust.
This cliché is used right after Amir finds out that Baba fathered Hassan. He makes the connection that he, like his father, betrayed his best friend for selfish personal motives. Baba betrayed Ali by fathering Hassan, his selfish motives was the sensual allure of Ali's wife. Amir betrays Hassan by leaving him the alley to be raped by Assef after the kite tournament.
Amir feels immense guilt and remorse upon discovering that Hassan is his half-brother, as he realizes that Baba had kept this crucial truth from him. This revelation deepens Amir's sense of betrayal towards both Hassan and Baba, and raises questions about his own privilege and cowardice in the way he treated Hassan. The revelation ultimately prompts Amir to seek redemption and make amends for his past actions.
In The Kite Runner there are many conflicts. There are external conflicts where there is betrayal, sacrifice and atonement where each character has to face them physically, mentally and emotionally. There is a major conflict involving Amir and Baba who are both seeking redemption for their sins, such as Baba betrayed his closest childhood friend, Ali, by sleeping with his wife; and Amir betraying Hassan by not helping him when he needed him the most. the kites flying is a good metaphor for the war that is going on in Afghanistan; war is another conflict regarding religion and status.