She's going to be cold to you for a while still, but you have to remain positive around her. Don't let her antics or indifference get you off course. Continue to show her you understand her feelings. Continue to show her the new you.
As long as you don't push her to it by confirming her reasons for wanting out of the M, (or giving her new ones) I seriously doubt she will file.
Why do I say this? Because your marriage was good (not perfect) and there is no other man. Don't let your words/actions push her to another man! She's going through a tough time right now, even tougher than you are. Keeping this in mind will help you have compassion for the love of your life.
Your goal right now is to allow her to feel comfortable around you again. Keep your interactions light and friendly.
As LBS's we always think, if I could only GET my S back I will be happy. But it doesn't work that way. We have to actually BE happy before they will have any interest in coming back. Work on yourself J. Build yourself a happy and fulfilling life and then maybe she'll want back in.
Oh, and good job venting here instead of with W. I do that sometimes too!
M: A really long time. Crisis: 5 years. She's still worth it.
Life is never made unbearable by circumstances, but only by lack of meaning and purpose. -Viktor Frankl