I've enjoyed this thread as well. Sadly-I am in the same boat- W has had 2 A's in the last 6 months, the newest one is a month old and they make their relationship official via FB. I also learned the MIL had dinner w/ the two of them Monday night.
I have busted the A's and I have done my best to set boundaries and not allow cake-eating...why can I not let go? Why do I want to stay w/ W?
Unfortunately, our R/M was riddled w/ inconveniences- split shifts, working 6-7 days a week, MIL living w/ us for 6 months- and money issues.
In fact in the 5 years living together, we prob went to bed at the same time a handful of times...her A's are much better than our M was- and that makes me sad- I feel like she will never come back.
I'm attempting NC while I await papers- all I can do is focus on me and pray for something.