Based on what I have seen on this forum, my experience, and some other things I read about what women find attractive, I would say it depends on the type of person.
1. Sex is used to start relationships for the most part now. Most Aspie men are too inexperienced in this regard and feel pushed too soon, or wait way too long. Truth is, if the women (or even a guy), knows she can get it elsewhere, she won't waste anymore time with you.
2. Blabbing on for too long about self or intense interests tends to alienate partners. What makes it worse is if the lady confides in you about what is bothering her, and you are trying to fix her problem instead of listening to her.
3. The first two goes back to one common thing: you got the girl alone with you, what do you plan on doing? What signals is she giving you? Are you picking up on these signals? My girlfriend has said "the man has to know what he is doing, know what he wants, and must know how to treat a woman. Is that too much to ask for?" Yet, she is a little more direct than others were.
4. Woman are far too subtle. Very few of the are willing to be direct. And therefore it will be the man's fault (no matter what) if the relationship fails. Many Aspie men or genuine nice guys are easy to make feel guilty for this reason.
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Your Aspie score: 130 of 200
Your neurotypical (non-autistic) score: 88 of 200
You are very likely an Aspie