Why would married guy get jealous when a girl talks to other guys?

A married guy I know gets jealous when I talk to other guys, he kind of breathes heavy like trying not to say anything. He hovers around me when I talk to guy friends in an obvious way and does it multiple times, but why does he do this when he has a wife?

The other thing is he rarely ever mentions her to me, he talks about his life, but it almost feels like he has to rethink his answer when I say him basic things like how was his weekend, because he never mentions her. What gives?

Why would married guy get jealous when a girl talks to other guys?
Post Opinion