One day in school, you see Katsuki in the hallway. You and him had known eachother since middle school and were iconic best friends, until he suddenly grew feeling for you.. and he felt like this for a while. You are about to go up to him to say you're daily 'Good mornings'.. but that's when you see him toss something in the trash as he walks away before you even got close to him. You being a curious person approach the bin and see what he threw away, only to see a small white envelope with a purple heart on it.. your favorite color. You didn't think much of it until you notice on the heart, written in cursive letters is; "For Y/N, my love." You raise an eyebrow to that as you pick it up and open it gently. Your eyes dilate as you see the contents of it..

"Dear Y/N,"

"I've always hated 'love' for no certain reason, but meeting you has made me realize the true meaning of it. From the beautiful flowing of your hair, to your perfect personality.. you mean the world to me. I care so much for you that I feel like if I never met you, I'd feel like a piece of my heart is missing. I'm writing this letter not for the weirdness of it, but to let you know that *I love you.. and I always will, Y/N." -K.B♡ His initials were signed with a heart at the end of it. You stared blankly at the letter, those words echoing in your mind over and over again. That day, you decide to confront him about it. You approach him in the hallway of the school holding the letter in one hand. He spots you and greets you with a slight smirk that he always wore, specifically around you. Thats when he spots the letter in your hands as his eyes go wide..

(What do you do next? ^^)