I really do struggle with being a nice, a good example, etc and the strong no nonsense attitude that DB requires. If an acquaintance was in my house without a phone etc, I would do the same thing.
I disagree with part of what you said. I think you struggle with not being a nice-guy type around her.....and you want to rescue her......which is another trait of being Mr. Fixer. (Have you googled what I suggested about people who have the need to fix everything)? It concerns me, b/c as well as you have done since she's been gone, I have little doubt it would take a full 24 hrs before you would be right back to the guy you had become when you first arrived here. You don't have trouble living apart from her. Your trouble is living with her.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!