I am leaning toward the idea of not bringing up D at all with the in-laws, but responding if they raise it. FIL may never bring it up. MIL probably will. I'll let you know if/what is said, could be of some interest to the board.
If the rope is still in my hands, it is very very loosely so. I feel like my emotional scales have tipped in favor of moving on. I am beginning to look on the internet at houses to buy or rent in my town, and find myself daydreaming about being free from W and all the silver linings that come along with freedom. I find that I really am not imagining a future with W at this point. The concern that she may be in a EA/PA has pretty much faded away. I am thinking almost entirely of myself, the kids, and what our new life is going to be, and what is going on with W is not of much concern at all.
I am cordial but not initiating conversations, and my responses are usually short and to the point. I end conversations first. I am always busy busy busy (Steve85) - not a stretch for me, always have been, no sitting around. GAL remains in full swing. I go out with friends several nights a week, work OT several nights and hit the gym several nights (after the kids are down). It's great.