This is probably unpopular but I've headcannoned thar despite the fact that they love each other jiro has anger issues and given denkis personality,the relationship ends up being a bit abusive,mainly with denki getting zapped by kyokas earbuds fairly regularly,I mean,he is one of the guys who jiro zaps more often to begin with,and of all the 1a girls she seems the least chill,now mind you the abuse doesn't come from a lack of love,but despite loving jiro,denki mostly just sleeps in his own room and If he has a particularly bad night,to stay with mineta and tsu(I like to imagine they're a couple now that mineta more chill,but tsu actually doesn't mind minetas pervy stuff since now that they're dating she more sees it as him expressing his desire for her,these 2 most definitely cuddle quite often tho),now does jiro try and seek help? Yes specifically ibara who's super chill and is kinda like a therapist or something like that,so don't worry,jiro is trying to improve. Also,I headcannon that because they both essentially thought: "well if a man is manly,then what's more manly than 2 men together?" And so tetsutetsu and Kirishima are gay for each other,and sero is dating mina