As for the OM, from what she's confessed so far there doesn't seem to be a physical affair. It was more emotional with her boss. He's the head of the HR department (she works in HR) and he actually told her that if she gets a divorce, that he gets first dibs (I have a lot choice thoughts on this).. . .
Last week she wanted to date other people and this week she wants to put things back together. . . .
Yes, I read all of that. That's what I meant when I say I caught up on your sitch, and there were warning flags there, and to keep your guard up and prepare your heart that it may be (have been?) an EA with this boss of hers. Maybe he spurned her when she wanted more, and that's why she suddenly wants to work on the marriage? Who knows, but there's some "foggy" thinking there on her part that seems pretty wayward to me.