Bakugou bullies deku because he loves him. Bakugou was doing this to hide his feelings. Bakugou was an alpha wolf and deku was a omega bunny. In high school. Bakugou would not leave deku alone, he was obsessed he was consitintley flirting and teasing deku Bakugou grabs dekus backpack "So what do you have for lunch for me?" Bakugou smirked