@Allegra: They'd probably know each other through prefect-y things, if only vaguely. I just don't know if they'd be friends?
@Cass: They'd again probably know each other and I think maybe they'd be friendly. Henry would at least be really chill with him because he's not judgemental, but he does call people out on their snark and snarks them back. :P Maybe they have fun banter.
@Rémy: If he's dating Samir, then they'd probably be friends and, uh, Henry wants special chocolates to give to Anais just sayin'.
@Kenneth: Fooling around and having fun is Henry's thang, so he's sad that it's mostly a drama club thing. Don't worry about the rats, Henry has an owl. :)