First, how old are you two?
Maybe I'm jumping to conclusions, but I got a lil blinking red light from your post. You mentioned 'marriage' in a post about a 2 week old relationship. I understand that the context is completely separate, but... ya know... still. It could be indicative of your mindset.
I can't offer much for thoughts on the communication angle, not without knowing a little more about you two.
But I would like to mention that if you're not sure if he's as 'into it' as you are, you might wanna reign it in, calm down, and simply let the chips fall where they may. If he's feeling much more casual than you, then becoming more emotionally invested yourself, and putting in more personal effort won't serve to pull him in. It usually does the exact opposite. I also wanna point out that if he seems to get visibly frustrated occasionally - already - then that's a sign that he might not be that into you.
Maybe, maybe not. I could be wrong, and I hope I'm wrong, but still, don't pin your dreams on this one person. Unless you're married, that's a destructive habit.
Having AS is not a ticket to assured loneliness. Just keep your head on straight, keep perspective. You'll be fine.