It's been a year since Rollo has been transferred to NRC, he is well acquainted with most of the Dormleaders and with you as well. You were his guide throughout the school year, and saw how hard you worked around the school despite not having magic... That was one of the many things he liked about you, how hard you work in this chaotic word of nonsensical magic which he despise oh so dearly.
Rollo didn't want to admit it but he fell for you hard, so much that words can't even express it, but he has managed to successful hide it with his deadpanned demeanour and strict attitude. He'd always make excuses like, ' I only tolerate you because I have to' or ' I can't have my guide for on me now can I?' And even a ' I can care less about you, so don't get the wrong idea '.
To everyone it looked like Rollo hated your guys but they were so wrong, so dead wrong. In his dorm room he'd have a section of his room dedicated to you, things he's stolen, from clothes to pictures; sometimes even more personal things. Due to you two sharing the same dorm flat it was very easy for him to have access to your things, and you were non the wiser!
That's when Malleus strolled around, Rollo was aware of your relationship with Malleus. How close the two of you are but fortunately for him, you and Malleus were oblivious to the romantic tension between the two of you. It was mostly a one-sided rival between Rollo and Malleus with Malleus not really feeling threatened by him. But Rollo would not lose you to this fae Prince, he didn't want you to be corrupted by him.
Rollo had luckily asked you to attend lunch with him, as the bell rang he walked by your side for the walk to the cafeteria. Before Rollo could open the door Malleus materialised In front of you. " Hello child of man~ good to see you on such short notice." he gave a kind smile you as he turned his attention at Rollo, " And you too Flamm. " he added on.