Agree with Sandi. Not really a breakthrough. I think the whole move out in the middle of the night thing scared you that she was never going to see or speak to you again and now you're understandably relieved that's not the case. That's not why she did it. She PROBABLY moved out in the middle of the night because she felt guilty and ashamed. She is/was conflicted about it and didn't want an argument or a fight (she may have even told Doctor OM that she's scared of you for some reason to make him feel good for saving her). You haven't proved she's actually having an affair yet but if she is....she's relieved that now she can conduct her affair in private without as much chance of getting caught AND keep you on the hook too while she endlessly figures out what she wants to do.
She's in cake-eating mode and simply elated that you are taking it so well and leaving that door open for her while she has the space to pursue her affair relationship too without the risk of getting caught.
If she's not having an affair, having sex with you in the AM then moving out in the middle of the night and then, a couple days later, spending the day with you all happy and huggy doesn't make sense to me.
Keep being nice and unsuspecting seeming while you independently try to figure out what is REALLY going on and who she is protecting.
Another thought...IF, as I suspect, OM is married probably with kids, and they are having an affair, your wife is in full pursuit of landing her a plastic surgeon. First step is to tell him how awful you are and that she's going to leave you. She sets up this story about moving out in the middle of the night in order to generate sympathy and concern from OM. But then she turns around and in typically other woman fashion lays her hooks into OM saying, "I've moved out, separated from my husband and now it's your turn to file for divorce and end YOUR marriage, so we can be together". OM likely has no intention of doing this, but he will drag along and string out the affair relationship until push comes to shove. Then he will dump your wife, your wife will go nuts on him and his family and then, wake up alone someday and realize what a fool she's been. In the back of your wife's mind today, she KNOWS that OM is not to be trusted but she's HOPING she can snag him. Plastic Surgeon doctors are the top of the hierarchy. Money, power, free plastic surgery for life and ego's the size of Texas. She's gambling it all on landing him. Even you...her faithful and adequate husband.
Bust them. Tell OM's wife and OM will end it immediately. She will wake up and realize that she's losing or lost the true prize of her life...her true "soulmate"...YOU. At that point you can rebuild your marriage or not. But it's a better solution to waiting around in fear of conflict for a year or more while she figures out Plastic Surgeon wants nothing more from her than sex and a good time. You don't have kids, time is of the essence. Turn your fears into faith.
The internet is 90% complaining and entitlement and I hate it because I deserve better!
