"What I have done and is strongly recommended in DB is to separate yourself from your W. Financially, emotionally, and if necessary (for your own well being), physically..."
With physically separating, be careful with regard to decisions to move out. I think we discussed this before. Talk to your divorce lawyer before you do it.
My sister's lawyer recommended that the LBS never move out. This is for two reasons:
1) The WAW's lawyer can make an abandonment claim which hurts your custody rights
2) If everything goes south and it goes to divorce, staying in the house will give you leverage if she wants you out. Your moving out unfortunately becomes a negotiating lever.
Move into the spare room on your own if you would like to establish your boundaries, but don't move out before talking to your lawyer.
--Accuray
Married 18, Together 20, Now Divorced M: 48, W: 50, D: 18, S: 16, D: 12 Bomb Dropped (EA, D): 7/13/11 Start Reconcile: 8/15/11 Bomb Dropped (EA, D): 5/1/2014 (Divorced) In a New Relationship: 3/2015