Izuku and Shinsou have you as an anti-depressant, Izuku lives close to you and chatters about things, which, by the way, he loved when you listen and interact with his subjects that other people consider "nerdy" and the main factor is: you are his caregiver when he comes of age, you don't judge him for crying for nothing, throwing tantrums and sucking his frog pacifier.
Ja Shinsou lives with you because you make a point of including him in ALL group activities, you sleep with him and this helps with Purple's insomnia, in addition to his depression, he consequently ends up losing focus of his life, because you are his excessive presence.
Izuku and Shinsou are also friends, they usually stay together reading books or watching you when Aizawa pulls your ear for disturbing classes.
Recently Shinsou ended up seeing a letter that Izuku made for you, so Shinsou told Izuku that he also loved you, it was a complicated situation, the two of them loved only one person, so they called you on the terrace for a talk, and they simply cornered you in a horrible situation. —Tenkky We love you! they say in Unisolo. —Then choose one of us to be your boyfriend. said the boy with purple hair. —We reached an agreement that you don't need to stop paying attention to either of us! We can still be friends! exclaimed Izuku.