lodo, I don't know how to say what I want without making it seem harsh and that is not my intent. So add the sweets and hugs and sugars where appropriate. BUT, don't let her USE you, don't let her take advantage of YOU, don't let her think she has you convinced to be her good friend. You don't do her any favors that way either if she is thinking you are still wrapped around her little finger and she can just leave you on the mortgage and go on about her life. Crying when you said no to her plan for YOUR life? Sure, she might lose it all if you don't agree to her plan. If she can't afford the place then she moves too. Consequences for her bad choices.
How will you feel when you find out OM has moved into the house with her and you're still legally financially responsible?
Her journals, I'd be sure to leave that box out and open with those pages wide open for her to see all over again. Reality slap.
D papers? Ask her what she is doing about it and what is the current status. I'm sorry I can't remember, but have you tried a list of 'we can scrap this D and work on us if you do 1...2...3.' That's IF you want to give her a chance.
Live your life while you are still living. Riding the trail less traveled.