3. Was McCandless reasonable in his reaction to his parents' past? Should he have forgiven them?

After his graduation Chris the neighborhood where he grown up and he discovered that his father had continued an affair with his first wife even after starting a relationship and having children with Billie. Chris did not tell anyone but he had negative feelings about it. I think he should have forgive his father because in that way he would have been able to leave aside those negative feelings that made him a resentful man.