I guess what they might be saying is that you don't behave like
you're married? Cause most married women would have too many
commitments and all that to have time for themselves, but because
Chris is pretty understanding and a gentleman, you have freedom in
that sense.
Just guessing. 
Maybe, it's not so much the LOOK married, but the BEHAVE like most
married peeps do? 
Honestly though, if I hadn't known, I wouldn't have thought you
were married too! You're a little more carefree than most married
peeps I know.
And that's a huge
plus.
Also, you don't talk endlessly about your Chris, Chris, and only
Chris. Not that all married people do that, but most of the time,
they'd mention it somehow in the course of conversation, like, "Oh,
my Chris loves to ..." / "I have to rush home tonight cause Chris
wants to ... " like that, see? 