Sure thing, dear. I’m going to write this as though they were in some kind of accident, I hope that’s what you had in mind!
Hinata entered the hospital room cautiously. “Hi.” He said, as softly as he could manage. His heart was breaking to see his s/o sitting there, all bandaged up and hooked up to IVs. Their mother had warned him on the phone, but he still wasn’t expecting this. “Sh-Shouyou?” They turned their head in his general direction, lifting a hand towards him. He leaped forward and grabbed it, squeezing it as he pressed kisses to their face. “I’m so sorry.” He kept repeating, trying to look into their eyes that, for the first time since he’d known them, didn’t sparkle back at him. He pressed his face into their neck, careful of their bandages. “I love you.” He murmured. “I love you so much, and I’m going to be here for you. You don’t have to go through this alone.” He promised, determination they couldn’t see alight in his eyes. The grateful pressure of their hand in his was all the thanks he needed.
Kageyama was visiting his s/o for the first time since the accident. Their mother stood beside him, and the dejected look on their face was the only thing that kept him from turning and fleeing the room. “Sweetie,” their mother spoke up, “Kageyama is here to see you.” They turned their head in the direction of their mother’s voice. She gave him a gentle nudge and he stumbled a few steps forward to stand beside them. “How - how are you feeling?” He asked hesitantly, gently taking their hand. Their fingers immediately curled around his. They shrugged. “As well as can be expected.” They sighed. “I’m sorry.” He whispered, almost grateful that they couldn’t see the pain and uncertainty in his eyes. “I wish-” He stopped. Wishing was useless. “I’m not going anywhere.” He said instead. “I’m going to be here. Whenever you need me. And I’ll do whatever you need. I’ll be your eyes. You can count on me.” He leaned down to press a tender kiss to their forehead, missing the small, small smile that flickered across their face.
Tsukishima was frozen. He stood in the doorway of the hospital room, and his s/o’s gaze was blank, directed towards him but not seeing him. He finally released the breath he’d been holding in and slowly stepped towards them. “Oi.” He reached for their hand, cringing when they jumped slightly at the sudden voice and touch. “I’m here, okay?” They closed their eyes, nodding slowly as he reached out to carefully brush a piece of hair off of their cheek. “Everything is strange.” They spoke softly. “I don’t know if I’ll ever get used to this. I don’t know if I can.” He squeezed their hand tighter. “You can. I know it’s hard, but… I know you. You’re the most stubborn person I know.” The corner of their mouth lifted slightly at that. “So I know you’ll get through this. We’ll get through this.” He brushed his thumb across their cheek before leaning in for a quick kiss.
Yamaguchi wished he could turn back time and prevent this horrible accident from happening to his partner. “I just want to see again.” They muttered, eyes filling with frustrated tears. “I didn’t ask for this.” “I know.” He squeezed their hand comfortingly. “I know.” He repeated in a whisper. “But, you know what?” They turned their face in his direction. “We’ll work through this together. Just like everything else. It’ll take time but I have all the time in the world for you.” He kissed their cheek. “Whatever you need, I’m here.”