I listened to Amnesia by 5sos writing this, like, I just had to lol
Jimin : Do you remember Taehyung’s reaction when they were that scandal with the song “loser” ? How he acted, how sad he was ? That would be the exact reaction of Jimin, he will not hide it in front of cameras or anything, the girl he loves doesn’t remember him and it’s breaking him. He will not be the boy he was, he will not smile, not laugh anymore, and he will cry very often. Everytime he’ll go to see her, he’ll apologize, for not being there at that moment, during the accident, he’ll keep saying that it should have been him, not her. So yeah, he will cry a lot and do anything for getting her memory back.
RapMonster/Namjoon : Wouldn’t realize. He will not want to. He will think that everything is just a big and bad jokes. Idk, I can clearly see him, going to his gf like “Eh y/n-ah you can stop now, it’s not funny anymore!” with a huge smile, but losing it as soon as he’ll see the incomprehension in her eyes. Finally get that everything is real, his girlfriend really don’t remember him. He will try to not change his behavior, but it will really affects him a lot. If she doesn’t remember him in a year or so. He will propose her, to start all over again. Being friends, and then more than friends. But he will still hope, during the first period where they are supposed to be friends, something will make her memory back.
Jin/Seokjin : Wouldn’t cry, at least not in front of her or in front of the others. If he cries, he will cry alone at night, like in movies. Thinking that everything is his fault, like he should have drove her back home or wherever she wanted to go, and everything would have been avoid, no accident, no amnesia. He will come to see her everyday, and will show every memories they had together, the gifts she gave him, the gifts he gave her, pictures and all.
J-Hope/Hoseok : Would be a total mess. Angry toward the guy who was involved in the accident and didn’t have anything, sad because the one he loves more than anything can remember him. He will cry a lot, begging her to remember, at least to try, he will do anything, showing her pictures of them, telling her all their good and bad times, hoping it will help her getting back her memory.