Questions about Restart

Dear Gordan Korman,

 I am a student and My teacher Miss James lets us write letters to you so here is my letter to you. I love your books so much, especially RESTART. But I have 1 question: why did Aaron and Bear not change? Also I LOVE the character Mr.Solway he is my favorite character he is just so funny and here is why he is my favorite character he has a really good and funny personality. I also love Kimmy as well because she is unique and was all over chase and now she is with brendan. Also I have 1 final question: if you keep on adding on to Restart what character would you choose for the last chapter of your book. And why? Lastly, thank you for making interesting books. I really enjoy them.

Sincerely , Demi