The Doctor tilts his head in thought as she mentioned never having a house. "I thought..."

He shrugs a little. Doesn't matter what he thought. River clearly hadn't considered it a home. Not like this.

"I... Have I got it wrong? I thought if we were going to make a proper go of it, we should do it properly..."

And he's thinking he's messed it all up again. Honestly. What good is it to look sort of his age if he still gets it wrong all the time?