WARNING:... you can skip this chapter if you like since some people find this topic very triggering
Jimin: he'll be thinking it's his fault and he'll cry when you're not paying attention. He will watch you 24/7 so you don't try again and he will be angry. Not at you, but at himself. He will keep blaming himself but at the same time he will take really good care of you.
Yoongi: he will be really depressed. He won't talk to anyone except you and he'll even start cooking for you, waking up earlier, etc. He knows what it feels like, and he will offer you so much support, doing all he can.
Jin: Very upset and angry with himself. He will be blaming himself for not being there for you in you right hardest times and keeps apologising, making your favourite foods and taking care of you more than usual. He will act strong but when he's alone, he'll be crying.
Namjoon: Will be extremely worried for you, asking you questions about why you did it. On the inside, he'll be nervous and on the edge, feeling guilty for not being there when it happened, or not even noticing your depression all this time. He will keep glancing at you, thinking deeply to himself. He won't be able to concentrate at work and all he can think about is you.
Taehyung: The happy, bright aura of this boy disappears. Instead, he's very gloomy and blank. He won't talk to anyone, he won't eat, and most importantly: he can't look you in the eye. He's embarrassed and he feels like a terrible boyfriend. He keeps thinking about you, staring out the window and sighing. After a while, he will apologise and take extremely good care of you.
Hoseok: He'll be very emotional. Blaming himself for being too caught up with work, and not being able to sleep because he is worried about your health and safety. He cries whenever he hears your name or comes near you, but he tries to be strong and puts a smile on his face, trying to discuss it with you.
Jungkook: He will not live, literally. He will act as if he's dead, not eating, not sleeping, and blocking out everything in his life. He will only think of you and talk to you, kissing you and taking so much care of you. He'll be more shy than usual, rarely talking.