She is just the kind of person that might not know she has the option to come back if she wants. I mean I told her that many time early on, but given her track record of selective hearing she has probably forgotten that and is still only concentrating on the bad. I can see her sitting there starting to question the decision that she has made but then telling herself, well, it's too late now.
Wait, are you talking about your W or mine? That is soooooo what my W is like too. And yes you are right, at some point you may need to put something out to her to let her know the door is still open. But at the same time you need her to know it's not a revolving door, nor is it a door you are just holding open for her in case OM falls through. Honestly I feel like I need to do the same with my W, but I feel like the timing isn't right yet. I've put out a few feelers to try and test her temperature but it keeps coming back as "ice princess". She's going to have to thaw a bit before we can have that convo I think.