That was an interesting reaction. Maybe she'd never understand him. She bit her lip, watching him, a brow raised. "This is giving me a headache. Traveling through time and space, I can take. Having other me's know what I'm going to do before I do it.." She shook her head.
Why was he so happy?! Well, yeah, she should be happy now that she was back to him and they were in the TARDIS and things were normal, but this was hard for her! She was still upset from what had just happened. He was right, though. She was here, now. Safe.