The Doctor: ...With Martha, like I said, it got...complicated. And that was all my fault. I just want a mate.
Donna: You just want to mate?!
The Doctor: I just want a mate!
Donna: You're not mating with me, sunshine!
The Doctor: A mate! I want A mate!
Donna: Well, just as well, cos I'm not having any of that nonsense! You're just a long streak of nothing!
(c) Tenth Doctor.