Rose took a few shaky breaths, trying to get herself under control. She felt ridiculous. The Doctor was just trying to explain the basic idea behind this world and she was blubbering like a baby. She didn't even know why, and if she didn't know, he would be completely lost.
"Sorry," she said, giving him a small smile. "It's just.. I think I remember more than you do. Not overall, I mean, just the last year or so..." She took another deep breath and pursed her lips together, telling herself sternly that she was not going to cry.