?? a lot of this rings true
http://webcache.googleusercontent.com/search?q=cache:LXU2QzfxnqYJ:life-with-aspergers.blogspot.com/2009/11/why-do-aspies-suddenly-back-off-in.html+aspergers+and+relationships&cd=9&hl=en&ct=clnk&gl=uk