How does via behave in wonder?

In R.J. Palacio's novel "Wonder," Via, or Olivia, exhibits a protective and supportive demeanor towards her brother Auggie, who has a facial difference. She often feels a mix of pride and frustration, balancing her desire to advocate for him with the challenges of being his sibling. Via's behavior reflects deep love and loyalty, as she navigates her own identity while ensuring Auggie feels accepted and valued. Overall, her character highlights the themes of family, resilience, and the complexities of sibling relationships.