In what ways are they distant?
Amir and Hassan are close in that they have been friends since childhood and Amir has always looked out for Hassan. Amir has also been protective of Hassan, often intervening when Hassan is in danger. They also share a strong bond of loyalty and friendship.
At the same time, Amir and Hassan are distant in that they come from different social classes. Amir is from a wealthy family and Hassan is from a poor family. This creates a power imbalance