From experience I can say that if it wasnt for the advise of AS I would not have took the path I took.
You are going to have hundreds of thoughts and questions flying through your mind and your instinct will be to try and find the 'fix' to put things right.
Truth be told.. none of it will work. Your wife now does not see you the way that you see her i.e. companion etc.. She now wants out.
So you have to let her go and focus on you. Over a long period of time (mine was 8 months) if you truly understand what you have to do, and make the mental and lifestyle changes you need to make - then your chances of recon are much higher.
If she doesn't come back you are a stronger person to experience this life on your own for a while until you meet someone else who will understand you.