Why did you opt to move to the guest bedroom? If she's the one that wants the "split", then she should be the one living in the guest bedroom, not you.
Also, please, please keep in eye on your checking/savings accounts, as well as your credit cards. If she follows the general rules of MLC, she's going to begin spending money like water and will not care how the bills are paid or what you and your children need in the way of material things.
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.
