AHHHHH!!! "Cake and having it too"!!!!!
Those are the exact words I was thinking about yesterday! My AH is still using, and who is he to think he can do that crap and be married to me!
I have no advice for you.. but it sounds to me like you are doing well! I think he is just trying to play the reverse game with you. "Act like you don't care even though he does". Either way, he is not a teenager and should not be playing those games.
Turn your phone off for a few day's. Or adleast when you don't feel like talking to him.
Hugs