There is no one right answer, so I want you to understand that and not second guess yourself when you make a decisions.
Whichever thing you try, whether it's moving out or changing the bedroom thing, it is neither the absolute right or wrong thing to do. The only thing that is really wrong is being mean.
If you feel you have more potential to work with moving out, you can try it. My vote for you staying has to do with your daughter as well.
I think you should try the sex thing. Again, it might help, I don't see how it could hurt in your situation.
If you want more folks to see your situation, post a link to it on MLC/Piecing/We're Separated and just ask for the power DBers to help you out, even if your situation does not exactly fit the topic of the forum.
have a great day
sg Love is PATIENT, love is KIND, LOVE never fails / DB since 2001