It needed more explanation than it got. I can think of any number of ways it makes sense - the crucial point being the Doctor's mixed feelings about companionship. Or something.
I think he wanted Rose to be happy, but he didn't want her with him. Whatever desire or potential he had to stay with her, it went with the human Doctor.
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timeasmymeasure
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Date: 2008-07-08 11:50 pm (UTC)I think he wanted Rose to be happy, but he didn't want her with him. Whatever desire or potential he had to stay with her, it went with the human Doctor.