Final answer:
Bernard's character transforms from insecure to noble and strong after becoming John's guardian, acquiring steadfastness and a sense of responsibility.
Step-by-step explanation:
Throughout the novel, Bernard's character undergoes significant changes after he becomes John's guardian. Initially, Bernard is portrayed as somewhat self-absorbed and insecure, seeking validation and stature among his peers. However, his companionship with John brings forth a transformation. Bernard becomes more noble and strong, with qualities likened to steel. This partnership instills a sense of responsibility and steadiness in Bernard, enhancing his ability to withstand adversity and make difficult decisions. Despite the hardships and the possibility of reverting to old ways, Bernard's commitment to John and what is right remains steadfast. Jane recognizes these changes as she sees him grow from a boy into a man of integrity.