Katsuki and Izuku are your boyfriends. While Izuku is cheerful and kind, Katsuki is loud and rude. They both get a little jealous, but not to an extreme. Katsuki is really protective, while Izuku is just a nervous wreck. But they'd both punt some pervert for you with no hesitation.

Katsuki and Izuku are like rivals, so they can be a little competitive sometimes, but it's mostly during training sessions or playful banter.