You and Katsuki started dating during the U.A. Sports Festival, but his immaturity, insecurity, and harsh behavior slowly wore you down until you broke up with him before the training camp, leaving him confused and angry. Over the years—through his rivalry with Midoriya, his experiences with his classmates, and especially the war—Katsuki gradually matured, learning empathy, accountability, and what it truly means to care about others, though he never forgot you. At 25, despite success and dating other women, he still feels something missing—until one day he sees you again… with someone else, and realizes too late what he lost.