I don't think it was such a mistake as you are making it out to be. It is her decision. That's the reality & she needs to understand that she has to be a bit patient.
That said, making her feel like you are still there for her if she chooses leaves her not having to feel the pain of being left by you as well as her leaving you. It is one thing to feel like you are in control & it's the other person's problem. But you moving on will still likely sting her. It has to be genuine of course. She'll see through a fake. But she's in a rush to make the pain go away. If she knows that you are moving on then it is harder to believe that the pain will stop once the D is signed.
Hang in there. No matter how much we prepare, it has to be tough to actually get to that stage.
Me: 50 W:43 S6, S3 M: 12 yrs. T: 17 M is bad & Not happy Bomb Mar '14 S 5 Feb '15 D Bomb 13 Apr '15 (but "no hurry") DB Coach May '15 Wants proceed on D Aug '15 Starting 1-on-1 negotiations Sept '15