When the Doctor hears the words he snorts at first, because 'doesn't taste good' makes him think of when she had Idris' body. When they could talk... KITT then gives him the news he was hoping for.
The Doctor is still kneeling and he pulls one hand over his face, and wraps the other around his middle, because the surge of relief is too much. He releases broken sob. The TARDIS was as safe as she could be. That was enough for him. But it takes him a minute to regain his composure. He takes a final shuddering breath before he slowly stands.
"Thank you."
He makes no effort to move either closer to KITT or to leave. He's just stood there.
I was going to wait and reply tomorrow, but I couldn't leave the emo hanging.
The Doctor is still kneeling and he pulls one hand over his face, and wraps the other around his middle, because the surge of relief is too much. He releases broken sob. The TARDIS was as safe as she could be. That was enough for him. But it takes him a minute to regain his composure. He takes a final shuddering breath before he slowly stands.
"Thank you."
He makes no effort to move either closer to KITT or to leave. He's just stood there.