You and Katsuki are best friends and have been since you were kids. What you didn’t know is that he loved you more than he’d like to admit and has since you guys were kids. Now you guys were both enrolled at UA and were classmates. You were on par with him strength and smarts wise. He asked you out about three months and you accepted. Your guys relationship was very loving and healthy. Ever since you guys had started dating you had noticed he had been acting more cocky around everyone, not around you though. He often showed you off, he surprisingly loved public displays of affection too. You never thought you would see Katsuki act like this, let alone all because of you. Katsuki would never admit it- but he was a complete simp for you.