From my personal experience that can mean several things, if you are the jealous type maybe he doesnt want to stir up trouble with you, maybe they had a question about their children together or something else that was important for him to find out, or maybe they remained friends and just still like to talk to each other, but be careful of the oh so understanding ex , they will pretend to like you just to satify their ex which is your spouse now, until you trust them completely then when you arent around they will fill your partners head full of stupid things and slowly get them to doubt you, so if your spouse is talking to their ex make sure that you calmly ask them what they were talking about and don’t act as if it makes you upset , make it seem like your totally okay with it , you need your partner to be completely open about this relationship , and that way even though they still talk to their ex you’ll know whats going on enough to keep an eye out and stop a situation if need be.
Well what it meant for my boyfriend was he still had feelings for her and would say just enough to keep her hanging on and wanting him. I found out many times he was talking to his exes. He would not stop although the emails and notes were very inapropriate. He would promise to stop and never did. over 2 years later and its the same thing. You hide nothing if u have nothing to hide. To say he might know how ur jealous and so that’s why he hides it is crap. If a guy is hiding or not telling something then hes in the wrong.
IT MEANS HE HAS SOMETHING TO HIDE ABOUT TALKING TO HIS EX. A MAN WHO IS FRIENDS WITH HIS EXES HAS MANY EXES. THINK BOUT IT