Maybe it is a coincidence, but it sounds like more of the same to me. She tosses out a few crumbs to get your hopes up and then yanks the rug out from under you once again.
I pray that you know that when we sound harsh it is for no other reason than to try to get you to see the pattern that has developed with her and wanting you to don your armor to protect yourself and your heart.
It sounds to me like when she's been vulnerable with you and starts to open up it scares her and then she rushes back to slam the door shut to make sure you don't get in.
Don't get sucked in again. Detach and live your life. Move forward. You don't ever have to give up hope if you don't want to, but don't let it keep you from learning and growing. You will absolutely know for sure if your XW emerges from the tunnel and has faced her issues and owned her part in the breakdown of the M. She has to do it on her own, you can not help her. Know that every time you allow yourself to get sucked in it actually slows down her journey through the tunnel.
BTW, if she had seen some of the things that we have written here, I doubt she could hold back enough not to spew some of what has been said back at you.
Just remember, we're walking beside you and we care.
