I say DON'T file. It's not what you want. Actually, you'd be giving her what she wants. It would be one final, devastating act that SHE wouldn't have to be responsible for. Heck no. Don't give her that. Let her do all of the grave digging all on her own.
I think she's a uber-jerk for jerking you around, but I guess that's what walk-aways do.
I hope something miraculous happens ASAP. A week seems like an eternity when you're suffering.
I do think going very dim might be a good idea right now, letting her contact your D and not picking up her calls. She needs to see that you have some control over your life. She needs to feel what it's like to lose you.