(Requested!)
You and Katsuki have been in a relationship for a while. However, due to him being stubborn about his feelings, he wanted to keep the relationship private. You were okay with that, and you never told anyone about it.
Until today.
You were talking with the other people in class earlier today and you may or may not have accidentally let it slip that you had a boyfriend. Of course, everyone was intrigued and they all wanted to know who you were dating. You already felt bad for letting that part slip, so you didn’t say a word to anyone about being with Katsuki.
But of course, Katsuki was pissed.
So now, both of you are in your dorm room after he practically barged in a few minutes after you got there.
“What the hell?! Why did you tell everyone?!”