Relax? He was relaxed! Well, sort of. Romana led the first few steps, and the Doctor eventually found himself catching the beat and leading a little more easily.

"Didn't realize it had been so long for me, too," he admitted.

It was...it was nice. A little strange, having her stand so close to him. Well, dance so close to him. And he'd already grieved over her loss, though he didn't know if she'd even traveled with his Eighth self yet. And he couldn't possibly ask.

Timey-wimey, wibbly-wobbly indeed.