Do y'all ever wonder how Katsuki felt being chased by Izuku his entire life, only to turn around and do the same because of the terrifying realization that if he wasn't fast enough to catch up with him, to stop him, then knowing Izuku — he'd run headfirst into danger, throw his life away because that's what being hero meant to him?
Him being almost terrified of All Might and Izuku being left alone together during the Rogue Deku Arc because they're the same breed of self-sacrificial idiots — because All Might's already gone and given everything to the world, and Izuku is following in his steps? That there's no one to stop them from going too far?
Him racing as fast as he can, confronting Tomura first during the MLA arc with the single-minded drive to kill him because otherwise Izuku would have to, and everyone knows the damn nerd would never do that? Because even on the verge of death, beaten down and bruised, Izuku always looks for the best in people? Because Izuku already did that with Katsuki, with Shoto, so what's to say he wouldn't with Shigaraki? And if he got bullied for ten years with Katsuki, broke all his limbs with Shoto — then how far would he go for Tenko?
Him knowing full well that if Izuku ever had to kill Tomura, then it would kill him to do so? So instead of subjecting Izuku to that, he'd rather rush in and kill the man himself? So that the nerd's 'golden heart' never gets tainted the same way Katsuki's is?
IDK, I was just thinking. Katsuki Bakugo gets characterized with lots of emotions (anger, guilt, weirdly enough grief), especially in the later seasons. But I wonder if he's ever been explored with fear.