Have you and your W gone to MC or Retrouvaille? It might be worth giving it a shot since you twp are back together.
It seems a little conflicted to be living back together and not sharing equally in household expenses, but I understand your reluctance about getting locked in to long term contractual commitments.
Sounds like you've got a lot of work left to do to fix things in your R. Don't give up yet.
Me51 W53 S17 S14 M22 T25 Bomb-9/11; A-11/11; I move out 11/11
It's easy to find our bottom, it is our top that requires cultivation.
Every rough spot adds to our emotional constitution. -Barney Fife