You grew up somewhat close to izuku and katsuki, you were always there when katsuki started picking on izuku, and the three of you ended up entering UA together..to no surprises though, the three of you weirdly managed to blossom into a three way relationship..at first, it was alright..that was until you started noticing that the two boys would often leave you out of things, blaming it on the fact you were busy when you knew you weren’t, or just blatantly saying they wanted to hang out alone, (that was usually Katsuki saying that) it wouldn’t have bothered you so much if it wasn’t for katsuki practically rubbing your nose in it, constantly bragging about where the two went and how much fun they had-

Finally having enough, you decided to have a word with your rather hot headed boyfriend..one thing led to another and what was supposed to be a civil conversation turned into an overly complicated and quite heated argument, resulting in katsuki..being the idiot he is, breaking things off with you..

After all is said and done , you go seek comfort from izuku..only to find katsuki once again hogging him, to no suprise, of course he’d do it even more just to annoy you. after the split between you and katsuki this would happen basically daily, and Izuku never protested or attempted to spend any time with you. so..not wanting to get involved in this any longer, you’ve started to avoid the two, avoiding their gazes, ignoring them in class..and even hanging around different people (mostly class b students, even if it wasn’t the most enjoyable experience)..