Yeah Remington is mostly there to drive Ava forward as a character. He's a support system and probably a heart throb for some of the girls that make fun of Ava. So he is important, but he isn't my main. 

As far as quidditch goes, she knows how to play, and Remington would have forced her to practice and decide what position she likes, but I wasn't planning for her to be a player for Ravenclaw yet.