Bakugo was in fight with some villain and after operation Deku visits Bakugo. But because of anaesthesia he forgot who Deku is. He asked him who he is! (Your Deku! And yea he didn’t forgot Deku forever it’s just a bit of losing memory nothing more!)

Bakugo: Who are you? Smirk What’s your name?

Deku: I’m Izuku Bakugo, and I’m your husband Kacchan! smile

Deku’s thinking: He can be so silly sometimes! Well his reaction will be definitely something from other universe!