I would just send a note saying that you are sorry if you came across as uncaring, but you are not sure how to react in certain situations. You don't have to discuss being an Aspie at first. Then you could just say some of what you said here, about her being everything you would like to be, and that you admire her greatly. That way if something else happens, she will remember that you admire her and are not likely being uncaring. Hope that helps!
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Dreams are renewable. No matter what our age or condition, there are still untapped possibilities within us and new beauty waiting to be born.
-- Dr. Dale Turner