You can't really give the blanket statement of "ALL" to people with AS....It might be a common thing...I was plagued once with an unhealthy attachment/obsession....that messed me up for years.
I once had a boss, who in retrospect, might have been on the spectrum...he was extremely awkward, and he was also a good deal older than me....and his actions towards me boiled down basically to sexual harassment in the workplace...I was a good deal younger than I am now, and a good deal more awkward, and didn't know how to respond.....He sorta became fixated upon me and stalked me around the workplace...and I had to tell on him because he freaked the hell out of me....and he cried in front of me...but it could have been because he was in trouble at his job...though I was never able to work for the company again and he just got a reprimand.