Libby, Your h's mask will be in place w/those he wishes to fool. He's desperately attempting to show them that he is a very happy man now that he is not living under the same roof w/you.
As for why the mask slips around you...he feels safe w/you and he knows that you know him better most likely than he does himself. Wearing masks and playing the happy go lucky fellow gets tiresome and it is a lot of hard work....
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
