Jack thought about that and knew that she would have either mixed feelings about it or ask for evidence of which he has. "I wander as well. She may have some mixed feelings about this and some proof." He sat down on the chair with the Doctor and pulled him over a little to lean on him, knowing he would eventually. 
"I dont know how he did it either but he managed it somehow. But I'm making breakfast at the TARDIS if you wanna come. Thought it would be better we don't have the Doctor move anymore than he had done already." And so Arwen lead the way.