You did what you did and owned your own 2x4's, MyK, so I offer none...
I would submit that your W has opened up to you in a way that could be taken positively...
See... What she is telling you would be exactly what she would tell anyone else. What's positive about it, is she is actually telling you. As opposed to the "nothing's wrong, it's just me" response.
That info (other than validating) may or may not be something to look at and consider being part of your 180s (if there were specifics). I only WISH my W would tell me how I offended her... But this is your story...
Not so sure about that answer you gave her regarding whether you wanted her to come back...
It's hard to tell if you told her you did NOT want her back. If you said that, maybe you could have just said, "You are just looking at options of how the future could look" or something similar...