The Wormhole wrote:
So, from Amy's perspective it's been ten years since she first started travelling with the Doctor. Meaning she's now 31 and the year is 2020. No, I'm not trying to make a point, just making the observation.
No, because she ages while with the Doctor, and it's been shown they can be 'away from Earth' for months at a time. So she's aging during all that time. The Doctor though always brings her back to the same time period she left from, but now she is aged older. Therefore, she can be 31, but yet in 2012 or 2013 or whatever, because she was dropped off only minutes after her leaving
I think that is the big issue with her and Rory, the fact that they keep aging while away, then they come back, and they are older, but their friends aren't.