Katsuki and deku have been dating for a while now but he found you (niko) and he had feelings for you even tho he was dating deku (you guys were close) and he asked you out and you said yes! and since then when deku wasn’t here he would cheat on him with you katsuki would hug you and kiss you every time when deku was gone he love you so much and you love him so much.. one day deku said** “I’m going to the store do y’all want to come? katsuki said “no we’re okay” deku nodded and left