Ad had a great post for you to consider...really evaluate where YOU are and what YOU want. Your H is going to probably continue his CAKE-EATING behavior as long as you allow it. He seems to think he can continue status-quo.
I think it was selfish of him to disappear for 3 days & not contact you or his children! That speaks to where he is at. He says he "always comes home." Well, maybe he assumes that will always be an option no matter what his actions are.
It sounds to me like you are getting to the point where you are ready to make some changes or some decisions or at least set some boundaries. I would suggest going as dim as possible.
M- 18 T-21 S-14,11 & 10 BD 6-18-2012 (OW-EA) H moved out 11-3-2012 10-5-13 Me- I want a divorce. I want to move on w my life. 11-25-13 Jointly filed.