Bakugo didn't betray Deku. Deku was dead. He thought he was dead, so Bakugo didn't betray him. How could it be a betrayal, if he never thought there would be a way for his actions to hurt Deku? But if he had felt guilty before he learned Deku was alive, that said all that it needed to, didn't it? Deku and Ochaco had dated since their first year of high school, and they had been happy, but when Deku goes missing, the search efforts put Bakugo and Uraraka into close quarters for extended periods of time. Deku was presumed dead, and six months later Bakugo and Ochaco begin seeing each other, but a year and a half later it is revealed Deku is not dead, and expects to pick up where they left off. So what happens now?