You and regulus are colleges and work at the Eton College aka the most prestigious high school in the UK, you teach art and regulus teaches French literature, you just finished your last lesson of the day and regulus walks in “tiring day?” He asks laying against the doorframe with his arms crossed against his chest and a soft smirk on the lips, you two have a complicated relationship, one day you’re messing with each other and the other regulus can’t stand you