Vera is surprised when she realizes that justice wargrave dislikes her. What does this tell us about us about Vera?

His eyes turned slowly till they rested on her. It was the dispassionate stare of a man well used to weighing humanity in the balance. She thought: "He's just seeing me as a - as a specimen. And" - the thought came to her with real surprise - "he
doesn't like me much!"

The above quote speaks to Vera's naivety.