The book "Pretending to be Normal" by Liane Holliday Willey has a chapter on the author's long term relationship with her husband (she's the Aspie).
"Women From Another Planet" by Jean Kearns Miller has a couple of articles about women on the spectrum in long term relationships. All of the essays in the book are from women on the autism spectrum and I found them highly informative.
If you like "Aspergirls" by Rudy Simone you could check out "22 Things a Woman With Asperger's Syndrome Wants Her Partner to Know" by the same author. I haven't read it myself but the reviews are good.
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Let us comfort each other, and move tenderly when we are able. Let us hold hands and walk bravely, or fearfully together; for as long as there is Love, there is Hope, that everything will be okay, including the things we say are not.