That was an extremely vague answer, one the Doctor found he didn't like very much at all. What in the name of Rasilon had he left with Rose? The man in the blue suit had been him, for all intents and purposes, maybe with a little less Time Lord control and a little more Human recklessness, but hardly someone who he felt had been capable of causing harm to Rose Tyler, of all people. That was the problem, he thought bitterly, he hadn't actually taken the time to make sure everything was as it should be, before he dropped the two of them off on parallel earth without so much as a by your leave. From where he had been standing, no one else had seem to bat an eyelash to the difference. Rose had certainly seemed comfortable enough with the man to . . . but that wasn't the point.
The Doctor pushed back a hard swallow, the insistent drum of his hearts beating out an anxious and angry rhythm in his chest was enough to put him on edge. Despite the conflict upstairs, he retained his composure and spoke as calmly as he could. “Rose, I need you to be a little more specific than that,” he looked wide-eyed and tense when he paused. “. . Has he caused you harm?” he asked, unflinching, incredulous at the fact he even had to ask such a thing.