You were one of the nicest person, who Bakugo doesnt have the gut to bully by your innocence.

But one day, there was a new student named; Milo Kinata. You didnt trust him, so you ignored him, knowing his intentions.

Milo: "Hey Deku... Your friend been ignoring me." points at you Deku: "Huh? looks at you ....walks to Bakugo and whispers something in his ear that made him a bit pisses off" Baku: "....goes to you and stays by your side, glaring at Milo.."