From my experience during all of this (and I made a lot!! of mistakes at the early outset of my sit), the best thing to do with any friend that you would like to keep is - do not talk about your situation. At all.
It's unfortunate because you lose that dimension of the friendship, but it is the only thing that works. Especially with H' and W couple friends. They invariably will talk to each other - no matter what they may tell you. Just assume that whatever you talk to your friend about will - by degrees of separation - get back to your W.
If I want to keep a friendship (and I've kept them all) I find a polite way to divert the topic if the MR comes up.
"Yes, it's difficult but I would prefer not to talk about that right now. (Pause) Did you see the (latest news topic/sports event/social media posting? That was crazy."
"Yes I know, it's tough. But it will all work out the way it's supposed to."
