I second what starrysummer said - this feels really wrong, especially with the way Sansa really believes she's Alayne and everything. I do think that there were some points where your flow faltered, and that that may have added some more of that feeling - awkward phrasing and such. But I'm intrigued by how you show Sansa as having traveled far enough from her sense of self that she feels more like Alayne than anything else, despite the way it sort of hints at how long she might have been in this situation. Which is especially worrying (poor Sansa!) when one considers how much stronger she seemed at the end of AFFC :(