I'm married to a woman from a large, close-knit family who is intelligent, friendly, tends to make friends with other interesting and intelligent people, and is an NT. I, on the other hand, am not diagnosed with AS, but am strongly characterized by a number of its traits, most notably the social awkwardness. In addition, my family has always been small. Before we got married a few years ago, we joked with each other about how lopsided the wedding chapel would be, with 100 friends and family on her side, and about 6 on mine. Despite the joking, I felt a degree of humiliation that I did not feel confident enough in my relationships to ask anyone to be in my wedding party to stand with me, aside from my brother and father.
Our solution to this was to take a trip to Las Vegas and get married. It was expensive, but less so than a stage wedding and guest reception would have been. We ended up staying in a nice hotel, eating some of the best food we'd ever had, and taking in some amazing shows. Best of all, we were able to get married without the pressure of friends, families, and their expectations. I think the most important part of marriage is its capacity to affirm our bonds with the people we love, and the rest of the expectations of a wedding are largely optional. My wife was worried her family would be upset that we did not make a large production of the wedding, but at the end of the day, we enjoyed ourselves, remember our wedding fondly, and her family got over it. Good luck in your life with a man who appears dedicated to sharing it with you, AS or no AS.