From my experience with myself and my friends, whenever I tell them about AS it usually is a bit of a non-event. Generally they've come to like and trust me for who I am, and if they know me well enough then the traits I have are just characteristics they know and apparently don't mind - and the traits I don't seem to have, I probably don't have at all. So my guess is that if you've been in a relationship with this guy for a while, then he probably knows you well enough already for the AS label to be quite superficial in the grand scheme of things.