Autists tend to be strongly rule-bound. I was brought up to follow the Ten Commandments. One of the Ten is “Thou shalt not commit adultery.” Hence, when I was hitting on my fling back in college days, when I was trying to ask her to make love, I also had to overcome my own internal rule against adultery. This rule was part of my big difficulty in being able to ask the question.
Rule-following continues even after marriage. Hence, I find the rule against adultery to be very influential when I am in social situations. Let’s suppose that I see an attractive woman. I might very well go into bird dog mode and seek to spend time talking/dancing with her. However, my libido never gets involved–there is no physical response. I can just enjoy the chemistry because of the way that my autistic brain is wired without having to worry about compromising my vows.