TM, She's in crisis because she's flip flopping all over the place. She can't remember what she's told you and that's starting to make her look a bit like a drama queen, but that doesn't excuse the fact that she needs to grow up and accept responsibility for her actions.
My sense of the situation, from your posting, is that she doesn't know how to pull you back into the dance. First she is crying about a place to live, you agree to allow her to move in and then magically she has a new place and moves on Friday. Now she's wanting you to go through stuff and take whatever you would like. The final bait trap is inviting you over to see her new place and swim in the pool. She's trying ever angle to get you interested in what she's doing and you aren't biting. She can't figure out why you aren't jumping through hoops to be w/her. BTW, she's not done trying.
I'm glad you had a great time w/the little one. I'm sure you did lots of fun things. I understand what you mean about the ILs.
Keep up the good work!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.