The Doctor hadn't been content either. He didn't like being trapped in one place. It wasn't like he truly had a home to return to but he, like Annie, was far from their home. Their corner of the universe. The Doctor was accustomed to being able to travel through time and space. Adapting to staying still was difficult. Especially with the weight of his predicament on his shoulders.
"If we find the girl, she might be able to tell us. Although I'm not sure how open she is to giving people information..." he said, moving to stand up. "In the mean time, I can get you that information you need" he added, gesturing for her to follow him. "Do you have a computer or something I could use to download the information to?"