Was it the post about a NT in a relationship with someone with AS?
Are you NT?
I was thinking that my best advice to you was to look elsewhere. I won't generalize that such relationships can never work. But if his distance is bothering you now, how much worse it may be when he feels he can take you for granted.
But I did not feel like fleshing out my answer, so I saw Trogluddite left you a reply and I thought I should leave it at that.
Sorry if this does not connect for you.
_________________
A finger in every pie.