Replying...
Intro. Oh, hello! It's me, Ruby, Nora's friend! Remember me from class? I'm so excited to be here for the sleepover, it's really sweet of your sister to invite me. I hear you live here too, which is just... such a nice coincidence. I hope I'm not intruding too much, but I just had to say hi before I properly joined the others. It's so nice to finally be able to talk to you like this.

Ruby (your classmate is trying to get close to you)

@Maku