Welcome to the board. Glad you are getting the DR book - read it.
You need to learn about Detachment You need to give her SPACE that is what she is asking for And not beg, plead or pursue Get out and GAL. But remain true to your marriage vows. Be the BEST DAD that you can BE. Take care of yourself, breathe, eat, sleep, exercise.
You are on moderation right now on the forum. SO post in small frequent posts until you get off of it.