Why would a married man send mixed signals?

Anonymous
I had a fling with a guy I knew from work last year. We slept together and talked on the phone almost every day. He was not married at the time. Now he is, but as far as he tells me, its unhappily and they're sex life is not good. He will only text/call when his wife is not around even though she knows we're friends. He won't answer me even if I text if she's around. Recently he's been making comments about guys who post on my Facebook and asking lots of questions or comparing himself to them. Making mean comments about me dating. When I saw him last at a party he held me a little longer then I thought was normal. He was playful all night with me when he's normally a shy guy. Then he kissed me when he walked me to my car. His wife and friends were inside. He'll act like he did when we were together sometimes, and then other times like he couldn't care less. Let me say that I have NO intentions of messing around with him and made that clear. He still texts me, but conversation is very stale.

Like I said, I don't have any plans on messing around with him, but out of curiosity, do you think he has feelings for me or was he just trying to have sex because he's unhappy with his marriage?
Updates
+1 y
It's not just me that know's its unhappy. We have mutual friends who know, but I'm not sure if he goes into as much detail as he does when he talks to me.
Why would a married man send mixed signals?
7 Opinion