Should I ask her how much for her rent and just plan around it?
This is an area that some men fine to be difficult, b/c (being men) they feel it's their place to help with W's finances. But change your thinking on this line. Remember that everything you do to "help" her live apart from you is enabling the S/A.
It's very difficult because I'm the honest and trying to play fair guy. Where she's now endangering my well being off of emotions and careless feelings. She's changed her mind way too many times for me to even keep up. I just want a binding written agreement that's fair.
I do not have to withdraw Dissolution paperwork either. The agreement can be given to judge at hearing, so she can't accuse me of stalling her freedom. Unfortunately, at this point I want out of it too. I love her but she's not even close to the woman I married.