What does Lee's anger at Longstreet reveal about his character and his belief in God in the novel, The Last Full Measure?

Lee's anger over Longstreet's attempt to spread the blame for the defeat at Gettysburg points to Lee's character. He refuses to not accept responsibility. Additionally, Lee has a strong Christian belief in the will of God. He cannot understand why God willed this defeat, but he also accepts this outcome as divine judgment.