Aha, yes! My thought exactly. At the end of that episode - I think the reason I like Amy so much is she reminds me a lot of Gwen. Personality-wise, and they have a lot of the same reactions. For example, the Doctor/Jack returning and expecting to be greeted with open arms. Or the fact that they follow the Doctor and Jack because, despite everything, and knowing they're not infallible, they have faith in them. And then their situations are similar - they're both thrust into this new scary alien world where they have to fend for themselves (I feel like Amy gets separated and has to figure things out for herself much more than the other companions, especially right off the bat). Not to mention choosing between Jack/Rhys and the Doctor/Rory.