EA then PA with her ex

[Anaru]

...and, until she ends it, do what?
I detach, GAL and move on.
I have told her what my expectations are (end it or move out)
I am not going to keep repeating them ad nauseam she knows the drill. Not planning on ultimatums - just doing things.
Am away for next 2 weeks on other side of the planet - work plus visiting my Dad, and on return will just get on tidying up finances etc.
I am considering what to say to my Dad & brothers and my MIL. So far nothing - just been getting support from MC, and a couple of friends. Am erring on the side of caution right now per DR advice.
MIL I am definitely leaving up to W to sort out.

W had told a girlfiend (she and her H are friends of ours) about the A almost right after the first time W & OM went to bed together.
Anyone else got experience of dealing with friends who were in on the A before you were?