Who is Andrew Orwell from Loser and what is their importance?

Andrew Orwell is Zinkoff's next door neighbor at the start of the novel. Orwell, also six years old at the time, is a spoiled and selfish child who says his father is just waiting to get them out of the neighborhood. Zinkoff meets Orwell years later, at middle school, when Orwell has grown much taller, has changed his name to Drew, and has no time for Zinkoff.