I told him I don't want to physically leave the house until the separation papers are filed. (Is this really the way to do it? Aren't we just getting farther apart as we separate?) He said he understands that I don't trust him - I'm afraid that if things get nasty he could file abandonment and take full custody even though he knows that's not what we agreed to.
And I fell into my old patterns. What started as us talking about what we needed to discuss turned into me trying again to make him feel guilty for what he's doing. At which point all discussions end and he walks out.