"Just, well, just being there. To pull me back when I lose it. Anchor me, I suppose." He managed to stop freaking out long enough to look up at the Doctor. "I spent some time with the other version of you recently and he. He seemed to know when I needed something to hang onto, to keep control. And - er - when we bumped into each other, I was hopping mad, really pissed off about something and he... letmetakeitoutonhim."
He turned away and stared out of the window, hands clenched in his trouser pockets, unable to look the Doctor in the eye after that.