Aud, that is crazy that your H wants to be "couple friends" with OW and her fiancee.
I think it's great that your have no ill will towards OW. I wish I could say the same, but I cannot. I've never met my H's OW (and hope I never do). All I know is how actively she continued to puruse him after he came back to me, often successfully luring him away. Yes, it takes two. But I saw her TMs... "can't stop thinking about you"... "are you wearing yoru special boxers?"... "I'm drinking bloody marys and thinking of you"..."I hope you decide to talk to me again" and more. So, I have not, nor do I think I ever will get to that point of forgiveness of OW.
Anyway, sorry for that rant. I do think it's great that your H is being open with you. I know I already siad that, but I just see that as such a significant step.
When is he coming home? My suggestion is to greet him lovingly. Don't ask too many questions about the trip.
Married 9 years Kids 5 and 6 Bomb 2006 H back and forth for a year M now back on track