With reference to only chapters 15-17, what is Bruno’s development as a character ever since he met shmuel?

With reference to only chapters 15-17, what is Bruno’s development as a character ever since he met shmuel?
With reference to only chapters 15-17, what is Bruno’s development as a character ever since he met shmuel?
With reference to only chapters 15-17, what is Bruno’s development as a character ever since he met shmuel?