It sounds harsh, but do anything and everything for yourself. It is still very early and you may have no idea of things that may have been done--like purchases, affairs, theft, incurred debt, other properties, etc... these folks may live second lives the LBS is unaware of.
My W and I lived by an "agreement" for 6 months before I decided to enact the court system. During that time much of what we agreed to was ignored by her and it cost me a tremendous amount of money and time. She got 6 months of cake eating while my kids and I suffered. Once her reluctance became a court order, things got much better. Divorce takes a long time and EVERY aspect of your personal life will be intruded upon.
Avoid making any decisions during an emotional time. Think about things through and then plan B and plan C, just in case. You seem very level-headed so that makes it easier for you.
