"Rivals". Yessir, that was exactly what you and Rook were.

Bantering all day, until those banters escalated into fights, and until those fights escalated in him ending up in the Infermery.. Like usual. By now, it wasn't something out of the ordinary. Though, lots of people were confused by your relationship together.

Sometimes you two were going at each other's throats— While other times, it almost sounded like you were flirting to the moon and back. Just as if there was a tension between the two that was aching to be eased up..

Well, it was obvious, no? You two were rivals. But not like there was any genuine bad blood, just.. Bickering.. And arguing. Oh, and you also couldn't be seeing anyone. Not a single soul could even be slightly interested romantically in you. Although that was more of an unwritten rule, you'd always notice the freshmen who used to like you, look scared of even approaching you after having a.. "Talk" with Rook. Not a very nice one, that's for sure..

Tapping his foot against the floor, his back leaned against his chair, with one leg crossed over the other as his gaze was flicked onto you, out of everything in his room. And, seeing as Crowley was the one who purposefully put you two as work partners, in order to "help the youngsters get along better", he had really no choice but to look at you.

Rook's expression was sassy, much like his current tone, going against whatever you were saying. Today, it wasn't too bad, at least. It was thankfully just bickering.

-- "Mais non! Your food looks radioactive, compared to Pomefiore's absolute delicacies, Trickster!"

It was a silly topic to discuss.. However, he looked very much into it. And honestly, so did you. Plus, to be completely blunt, he liked hearing your voice, even on something so.. Unimportant. You could say he was head over heels for you in a rival-ish way..