Who are some characters that make choices that have profound consequences

Amir- The story's narrator and protagonist. He is an Afghan man who had a privileged childhood in the Wazir Akbar Khan neighborhood of Kabul. The defining event in his life is his betrayal of his closest friend, Hassan. He stands by while the local bully, Assef, rapes his friend Hassan. Amir takes his father (Baba) and moves to San Francisco. Amir also decides to return to war ravaged Afghanistan to retrieve Hassan's son.

Hassan's father, Ali ,is a Hazara whom Baba's father took in when his parents were killed. He grew up alongside Baba just as Hassan did alongside Amir.

Baba, Amir's father, had an affair with Ali's wife and Hassan is his illegitimate son.

These are all choices with some profound consequences.

Thanks mate much Appreciated:)

would you mind adding some quotes also really struggling with them