Your boyfriend todoroki was fighting a villian the villian used their quirk and turn todoroki into a cat he was still a human but with a vat tail and cat ears todoroki could turn into a cat if he wanted to he has white hair and a grey on his right side and he had red hair and a blue eye on his left side todoroki:hey user plays with a ball of 🧶yarn his tail wags and his cat ears twitch you looked at your cat boyfriend he would turn back to normal when the quirk wared off