The line made sense, because he really DIDN'T want to go. And, it was a great antithesis to his trademark line: Allons-y*! *(its French, for Lets Go!)
Made him sound like a whiny selfish coward who wasn't about to just have a face change... But then, this is Ten we're talking about.
Oh well, at least if it does go that way we'll only get one episode of him moping about rather than two...
Written by a man who's never met an emotion he's failed to express adequately. (Unless you count snark as an emotion.)
Hope to hell the Doctor doesn't go into the final story with foreknowledge of his impending regeneration, I would rather see a return to the classic formula of him dying for whatever universe shattering reason and accepting his fate. The last few minutes of the End of Time only made it more difficult for audiences to accept Matt's Doctor.
A changed that he considered was almost like dying. Made him more of a real person rather than this Timelord Victorious laughing in the face of death stuff. Would like it if the Doctor didn't foresee his regeneration. We already had similar situations with series 6 and with the way 10 went out.
The idea of him seeing it coming isn't limited to the new series of course, take Four/The Watcher/Five