FITZ: What's the bloody point? You can knock it off with the concerned-friend routine, too. You don't need me. You can find the Doctor without me. Leave me here to rot with Ellis. I can find out if he smells better once he's been dead for a while.

COMPASSION: Of course we need you, Fitz. You don't think the Doctor would leave you here anyway, do you? The Doctor trusts you, he doesn't trust me.