At his continued cluelessness she sobers a little. The harsh reminder that he isn't hers hurts, as does his lack of telepathic reciprocation. "Can you really not tell?" No, the distance between them is just still too great, almost like it was at a point before they had bonded at all.

But she is determined not to let that ruin her present accomplishment. She found him, that was the most important thing, and being together will surely strengthen their connection. Smiling again, though less freely than before, she says, "I am the TARDIS" and accompanies that with a more direct mental nudge.