You know, I think your kind of situation is maybe the hardest. Together, but not really together in the same home. So you are faced with the reality of the situation and need to rub along with your spouse, whilst dealing with your own feelings about them and their behaviour, and the rejection.
I totally agree with Sotto on this, when you live together under the shadow of the MLC it is so hard. You are doing really well, and you sound like you're keeping it all together.
"There's nothing sadder than a conman conning himself"
“There is freedom waiting for you, On the breezes of the sky, And you ask "What if I fall?" Oh but my darling, What if you fly?”