What does it mean when a guy says you “act married”?

Anonymous
I had a guy ask me multiple times if I was married because he said that’s how I acted. I’m not, I’m single, even at that time but he wouldn’t believe me I guess. He didn’t really explain his reasoning on that either when I asked him.

What could he mean by that?
What does it mean when a guy says you “act married”?
3 Opinion