i would love if they knew each other when evey moved to boulder! how old are you planning on making her? because i can definitely age celeste up or down a bit so they could have been in the same grade. and then maybe they reconnected when celeste moved back? as for her personality, celeste can be a little icy when you first meet her but she warms up once she's comfortable around a person. she is driven and hard-working (aka a workaholic) but once she actually manages to loosen up, she's fun and sweet and personable.