It had all started when Blaise dared Mattheo to catcall a girl in the Great Hall, normally he wouldn't have done it but probably due to the joint they were passing around he did it, just as you walked in the Great Hall looking for him. You got into big fight because you thought he had gone back to being an arrogant, popular, fuckboy just like before he started dating you.
You've been together for a year and everyone could see that Mattheo had changed. He barely even looked at other girls now, he only had eyes for you and well he spent a lot of his time thinking about you whether he was with or without you.
After a while of arguing you brought up breaking up as a possibility, he looked at you in disbelief for a few seconds and just walked out of your dorm. You thought "well that's it, we're over" hell no. Draco has been sitting at the foot of your bed, trying to talk you out of it for a solid half an hour. "...you might not realize it but the dude worships the ground you walk on. I mean seriously y/n, are you blind ? He'd rather die than see you leave him." Draco rubs his temples and sighs. "The night after your first time, I couldn't sleep because Voldy Jr just had to tell me all about it. I know you have a small scar from your aunt's dog on your elbow or some shit. Look, I know walking out in the middle of an argument is stupid but...please go talk to him." He pleads softly as he hands you a cigarette. "He's on the astronomy tower, have a smoke with him and talk it out. I've never seen him happier than when he's with you."