Who is Aaron Naumann from Bee Season: A Novel and what is their importance?

Aaron Naumann is Miriam and Saul's oldest child. He fantasizes about becoming a rabbi and is extremely intelligent. Sadly, Aaron doesn't have any close friends at school and is bullied as a child. Aaron spends a lot of time with a good deal of time with Eliza, and he is her hero. Aaron daydreams about being popular, athletic, and talented.