Well it seems pretty obvious that she loves you but she is scared. It's not really surprising since you love her and you are scared.
All that went on before between you weighs on both your minds. "Will it happen again?"
Maybe that's the key, recognizing that she is probably thinking the same things as you. Out there somewhere there is an alternate BB wherein the ex Mrs. Wes is saying "I don't know. We were warming up to each other, and then I find out he told my parents that he wishes I would stay out of his house and move out all my stuff." and all her friends are saying "Go dark!"
Just a thought.
I don't know of any solutions except the idea that maybe you two need to do this little dance for awhile. Depressing, I know.
And the whole not going to have contact for a day or two and take time for myself, how did that work out?
I'm with the others; what the hell is she doing? Clearly neither one of you mentioned the conversation with her parents and of course, you know not to vent to in-laws. And I'm guessing her stuff is still there and she still has access to the house?
I guess I don't understand the part of her inviting you places, then coming over, hanging out, leaving and coming back. This is behavior just like a couple.
I can sense and understand your frustration.
And you have not taken the time to step back from the situation and analyze each other's actions.
I really don't think there is going to be any shift in the dynamic, behavior or actions, until there is a chance to step away and REALLY clear your head.