I think it may very well just be that even though my W talked a lot about OM the other night, I still don't "feel" him in my sitch like you do OW in your's, so I am ok with just "being" with my W. I don't have the urge to act in any way other than how I want to act. I THINK I have let go. I THINK I have. I am not sure. Time will tell.
What I am saying to you is that maybe you just you BE a loving person, wife and mother and if he chooses to make one of those things meaningless (hint:wife) then that's up to him but you will continue to BE those other things no matter what he does. Embrace that.
So, when he gets home, you just be who you are and let him be who he is. Accept that about each of you and let go of the expectation that it will be any different...today.