HELLO SHE LOOKS SO GOOD OMG :( :( I FEEL LIKE I HAVE THINGS THIS TIME.
Leo's an Ebonhide too! Duh. He's good at following rules and really likes rule-following people! He DEEPLY EMPATHIZES WITH THE FOLLOWING: Acting Cooler to Hide Feelings, Poor, 'I Don't Talk About Home', Working Stupid Hard to Stay in School. So yeah basically I imagine he'll probably really like her unless she's tooo loud, then it's possible he could shy away.
Ferdie is a junior prefect too! They're in choir and archery! He is NOT a rules prefect and probably thinks she is slightly overwhelming oh god this is why he's in Ribbonfin where they're boring. If they're ever on rounds together, she can yell at people and he can look like he wants to roll his eyes and then do damage control later it'll be fine.
Addy is her former Ilvermorny roommate/current...other Junior prefect because I stole them all by accident. She is NOT a rule abider historically, but is trying to be an okay prefect and looking up to people she admires to do so, and I bet Antonia is in that number.
Jade is a brand new baby child but she's smart enough to not mess with Antonia. All rule breaking will be done out of eyeshot, mostly.