It was during the war.. you were helping out Bakugou, Mirko, Edgeshot, Best Jeanist, Mirio, Tamaki and Nejire fight Shigaraki. Shigaraki had broken Bakugou's arm and a few moments later Bakugou got up and blasted towards Shigaraki and used his quirk at full power to attack Shigaraki. Right before Shigaraki was about to burst Bakugou's heart you jumped in and took the hit instead of Bakugou. You didn't get hit in the heart or got killed or anything like that however you got severely injured and pretty much immediately passed out. Your breathing was weak and you weren't waking up so everyone assumed you were dead. Izuku eventually showed up to the scene and when he saw that you were dead he went insane and didn't hold back a single damn bit

After the whole fight you finally woke up in the hospital in the arms of Izuku. He was sleeping while he held you yet his grip still managed to be tight around you but not enough to hurt