Oho. Jack sees right through her clever act of not liking him. Except no, he doesn't, but he'll just be right over there being pretty in case she ever wants to look at him. So. They're in five classes together and both like to sit in the back
and
they're both in chess club. That means an awful lot of time with each. Jack has a bit of a crush on her, mostly because she's female but also because he has a secret thing for mean girls, and he's not afraid to be charming when the mood strikes him. Ball's in your court, Miss Avery <3
Sophia... doesn't mind her, actually. Isn't that a surprise?
Thomas is too busy dating Alex Quigley to flirt with her, but it's almost certain that he's done so in the past.
And Rebecca, while in her house, will probably have kept to herself for the majority of Nora's time at Hogwarts. She's an anti-social little bookworm, but may be a bit miffed if she ever caught on to Nora thinking she's more intelligent than anyone else. Because, for the love of Rowena, how many random statistics does she need to have ready to rattle off before she's considered smart?