Here's why:
* She punishes him unfairly: Miss Narwin accuses Philip of cheating on a Latin exam, even though he insists he didn't. She seems to have a bias against him and doesn't even consider his explanation.
* She doesn't believe him: This fuels his resentment. Philip feels wronged and misunderstood, especially since he has a strong sense of morality and wouldn't cheat.
* She contributes to his internal conflict: Philip struggles with his own feelings of guilt and insecurity, and Miss Narwin's judgment intensifies these feelings. He feels like he's being judged for things he didn't do, adding to his internal turmoil.
It's important to note that Philip's feelings are complex and influenced by several factors, including his own insecurities, the pressures of his environment, and his complicated relationship with Gene. Miss Narwin's actions are one part of a larger picture of his emotional struggles.
While he doesn't necessarily express his anger directly, his resentment towards her is a clear indication of the hurt and injustice he feels.