Okay, once was kind of excusable, but hanging up the moment he starts pouring his heart out in song? Something is seriously wrong here, and his brisk walk towards Sector 0 almost becomes a run as he hurries to find his distressed boyfriend.
Seeing him doesn't offer much relief, given how tense and stressed he looks, and he's not surprised when no embrace is offered. He stops a few feet away, studying Ianto, a faint line drawn between his brows.
"Unfortunately not, or we wouldn't still be here." He decides to be brisk and businesslike about this, at least until he knows what he's dealing with. "What's the last thing you remember?"
At least Ianto clearly remembers him, which is a massive relief in itself.