Mine is - no diagnosis either but his son is under assessment and his dad exhibited even stronger traits than his son!
Read this!
www.psychologytoday.com/blog/spectrum-solutions/201006/what-everybody-ought-know-about-aspergers-and-marriage
I think the thing is here that there are things that will be very difficult and things that you don't even realise are so valuable. Like real integrity.
Also, the 'label' only goes so far - like anything, there are Aspies who are nice people inside and there are Aspies who are not. Similarly, I know two people with borderline personality disorder: one is a fucking nasty piece of work and one is one of the kindest people I have ever known. But both exhibit similar dynamics and responses to stress, etc. So it's up to you to decide what you can and can't put up with really.
How did this diagnosis come about? Is it a surprise to you? What aspects of it are you worried about?
Some of my observations: despite the caricature of the Aspie man as being cold and like Spock, mine is in fact warm, loving and extremely devoted. He is very organised and a very very attentive and caring father. If he finds something I like, he will do it over and over and over and over and over. He is however very rigid in his thinking (despite his protestations that every time he is minutely flexible this 'proves' that he isn't rigid 
) and very slow to change or act. He gets emotionally overloaded very easily. He can be very defensive and takes minor criticism badly. All of this is worse when under stress. He is emotionally naive and can (and has been) very seriously taken advantage of and abused by people who have very bad motives, but he doesn't see this coming because in his rigid worldview, all people are good and have good motives really. Changing this view is, to him, like changing the DNA of the universe and freaks him out so getting him to have self-protective measures and danger radars has been very slow and painful. Also despite being very caring, he is not practically very good when someone is injured or ill. He has a protocol - offer comfort (kiss on head, pat on back), tea, and a bath. Sounds great right? But this is the same whether someone has a sniffy nose/is a bit tired, has severe D&V, is having a nervous breakdown, is bleeding profusely, broken a bone, or has fainted.
I think the main thing I've had to do is to decipher some of the conflicts we've had and work out what I could do to communicate better. Like really clearly. It seems to have helped but the lack of understanding/listening did nearly end us. Wrote about it in a couple of posts on this thread
www.mumsnet.com/Talk/relationships/2305075-I-can-never-understand-our-arguments-help-me-decipher?