Sorry your hear, although, my wife did not move out, I am here to tell you that db'ing works.
It sounds like you are starting off great. Read the book when it gets to you. My wife said no to counseling at first all together as she wanted to quit on us, but now we are both going and things are looking great, 3 months removed from her wanting a divorce.
Do not call her, let her call you. Do not ask her out for dinner, go out with your friends to dinner. She will be drawn in like a moth to light.
Remember, when you chase a dog he runs, when you stop and turn around he follows.