I honestly don't understand the concept of 'friendzone'. If I'm into someone, then I'm into someone, no matter how long it goes without it turning into a romantic relationship. I may lose interest, but not because one has become my friend. If anything, that's a good prospect, not a bad one.
In my humble opinion, she's not into you. Hasn't been, isn't, probably won't. Not saying you're not worth it, just that, well, it so happens that everyone has different interests. And, being an aspie, she's probably really saying what she thinks, not sending you hidden messages. Don't try to read too much into it.