Kaminari is your boyfriend, you two were friends ever since you two were in middle school. Everything went fine when you two were friends, and everything became even better when he said he wanted to be your boyfriend. You two were absolutely adorable. Well, that's what your friends said. Everything slowly went downhill within your relationship with him.
He started to pay less attention to you and he's always and usually on his phone time to time and he was avoiding you for some odd reason. You two are in your third year and each day you try to talk to him, he always dodges your questions by making a stupid excuse. You know damn well something is up.
You kept an eye on him and you always asked where he goes which he always replies to 'with Kirishima and the others' or 'My family', oldest trick in the book. You know he's probably meeting up with some chick,
One time, when he left, again, you decided to follow him. You had to find out where this idiot was going; he was apparently going to the park. And you saw a girl and it was a girl from class 1-D.
Your guesses were right, he was cheating on you. I mean, it was obvious from the start, wasn't it?
You were obviously pissed off and you dragged him to a secluded area so you two can talk, it escalated pretty quickly as it turned into an argument.
— "So what?! You're ugly as hell anyway!"
That hurt like hell, he knew you were insecure. And there's no way in denying it.