There was a sense that he gave up; he decided to stop traveling back along his own personal timeline, and he evinces surprise that Amy remembered enough of him to pull him back across into the new timeline.I wonder if the doctor really was expecting to be saved, or if it was a bit of a surprise in the end.
This is going to be so cool, a universe where the Doctor didn't exist.![]()
How is this a universe in which the Doctor doesn't exist?
When the Doctor is pulled from the ether by Amy's memories, River's book is once again filled with her scribblings of the Doctor.
Rory also mutters, "How could we have forgotten the Doctor?"
And someone still has the Doctor's time-digits since he gets a call (to action) from elsewhere at the end of the episode.
It seemed to me that the Doctor did not exist once he entered the crack. Then, once Amy remembered him, his life and time stream reentered the "rebooted" universe. And, thus, becoming part of it.