How Sombo treats arn in Chapter 6?

At first, Sombo just ignores Arn when he notices that Arn is stealing rice, or eating tamarind fruit. Finally Arn asks him why he hasn’t turned him in, but Sombo admits that before Khmer Rouge, he was an orphan, poor and hungry just like them. Soon, Arn plays for Sombo almost nightly, and even begins teaching him how to play the khim. He is the first good soldier that Arn has met.