Crush
When she first heard about Naila McClaggen's crush on Scorpius, Rose was torn. It was not a situation she was familiar with, and the literature on how to deal with a girl who wants in your boyfriends trousers was slim to none in the massive Hogwarts library.
She opted to ignore it. She trusted Scorpius, and after hearing about Naila's mother, Romilda, and her attempts to woo Uncle Harry, Rose had no qualms about her boyfriend tutoring the 5th year who made doe eyes at him at every opportunity.
At least, that was how she felt at first.