I see what you are saying. What I currently am doing is trying to let her take the lead. I don't call first and I don't always pick up the phone when she does call. Other than that, I really wouldn't know what to do. I have no desire to date other people. I do try to be the first to end our conversations though.
You are absolutely right about not faking it with the person who knows me best. That said, my current strategy has been to stay busy, exercise, appear like I have a life, be consistent with my changes, be there for my daughter and try to make my times with my ex enjoyable without mentioning the relationship talk.
So far it seems to be working, but my biggest thing is that I get too impatient sometimes. This is something that is going to take a while as I think she is still wondering if my changes are real and permanent. That is the hardest part of all this - is waiting and not knowing what the final outcome.