I think she likes you and that indeed she is scared, doesn't understand everything, is confused BECAUSE of her AS.
Reading this reminded me of a friend I had. Although I really liked him, etc. I said many of the same things she has said to you and gave him the same reasons. It was without a doubt the biggest mistake of my life. He actually talked about marriage, he actually talked about having kids, he never specifically TOLD ME he loved me. Because of this, I was scared and had doubts. My feelings were I thought stronger and therefore, I pushed him away. That was over 20 years ago and to this day, I can honestly say, it was the biggest mistake of my life. I wish he would've been open with me about his feelings, not just that he wanted to marry me and given me a little space, yet not left completely. I do believe he feels the same today. 