Alienation, Ambivalence, and Adaptation

What most struck me was that it wasn't in fact "the external world" that Donna Wiliams was disturbed by, detached from but rather a particular subset of that world, in particular the interpersonal external world.  And that she was detached from it not only because she found it confusing but also because she experienced it as obtrusive, threatening to her own sense of her own space and ultimately her own existence.  Its like, as Anneliese suggested, someone who is transplanted into a human culture involving different language/customs but, if I'm understanding it right, with diminished ability to learn either.  Its worth thinking more about where the sense of obtrusive comes from, perhaps a presumption of reciprocity build into most human brains but which Donna Williams lacked?  She (like others on the spectrum) was willing to offer people things and to take things from people.  What she had troubled with was figuring out what they wanted, and with their failure to appreciate what she wanted?