I was. I had always wanted to leave [No, correction] escape Gallifrey. It was even more stifling then than when I'd last been. No offworlders, no interest in exploring, because it had already been done, you see? Filed away in data chips and libraries.

It hadn't been enough for either me or the Doctor. I went the establishment route, you see. Be the best student, study hard and get a good political position, become the most Time Lord I could be. Then they would trust me to leave, to be them on the outside, and I would be free.

The Doctor took the arguably quicker route. Upset the wrong people and they threw him out. Either way, we both got off, in the end.