The Doctor lies. That much is known quite well. Yet, how far do his lies stretch on for? How many of his lies does he himself believe? And how many of those lies would survive if he was suddenly forced to stop, think, and remember?
For most of his life it's been the same thing going over and over again. Run away. But what is he really running from?
For about a thousand years, there has only been one constant. Him, his Tardis and his travels. Companions come and go, but he could always count on another adventure to be waiting for him, and his ship to faithfully take him there.
He got hurt on his last travel, in more ways than his lies would allow him to admit to himself. It all comes crashing down on him once he realizes that in this new world, he doesn't know anything. He's helpless. He's suddenly more disconnected, more alone than he ever felt in his entire life.
He lost his Tardis. She was always faithful, always there for him. And when she needed his help, he couldn't do anything. She was out of his reach.
He was alone... save for one local.