He looked surprised at first, especially with the amount of vehemence that was present in that one statement. The thing was, the other him, the metacrisis - who he supposed needed a name other than Doctor, since really, that was his - was him, and yet it wasn't him, all at the same time. Which he supposed was part of the problem.

So eventually he just settled for a shrug and a "No, it's alright. I suppose he's not really, is he?"