Ianto bit his lip, nodding slightly, keeping his eyes shut for a few more moments as he sat there, breathing. At the feeling of Sulu's hand in his hair, he unconsciously tilted his head into the touch, pausing for a little while longer, before cautiously opening his eyes. Cautious because for one thing, he wasn't sure exactly what it was that had set him off, that had put him down for the count in the first place, and for another...he didn't want to see the look in Sulu's eyes. The look that he knew would probably be there, a look that would be completely different from the calm and quiet tone of voice that he'd adopted with him.

After a few moments of sitting there against the wall, collecting himself, Ianto took in another deep breath, and let it out, shakily. He knew that they weren't going to sit there in silence forever, that they couldn't, and that the silence was killing him, so he opened his mouth and tried to cover for himself. "I... I'm sorry, I... I must've stood up too fast, or something," he said, quietly, keeping his eyes firmly anywhere but somewhere where he could watch Sulu's reaction to any of this.