[He might not have heard Lockon, but he definitely heard Haruhi, and that doesn't sound good at all. He knows that Lockon is almost completely blacked out, but he also knows that Haruhi won't take that well. At any road, it seems like he might need to interfere, so he sets the TARDIS to auto-pilot for now and rushes back over to the other two.]

Haruhi, he doesn't know what he's saying, I'm amazed that he can even see at the minute. [Frowns as he looks at that blood] Maybe I should knock him out before he does any more damage...

[Whether that meant to himself or to Haruhi was debatable. Probably both.]