His smile flicks wider at John's chiding before Ianto heaves out a sigh and, reluctantly, dips his head fully under the water. Surfacing and scrubbing his hands over his face to keep it out of his eyes. Unlike John, Ianto has no soap he's brought with him so unless he feels like sharing, he'll just have to settle for a soak and hope he gets clean enough.

"Look, I just. It's hard to feel so helpless. That's all. I don't meant to be." He gestures vaguely at himself, to indicate the mercurial mood he's fallen into. "Like this. I just. I don't know." He floats his hands around in the water around himself, not quite looking at the other man as he continues, "I've never liked feeling so far out of my depth. I'm sorry that I'm not..." Handling any of this very well, truth be told.