Welcome to our little world. I'm going to be posting some homework for you to read over.
You will discover that we utilize the same advice/suggestions, etc. for the WAW as we do for the MLCer. That advice includes: leave them alone, give them plenty of space and keep the focus on you and your family. If your wife is ignoring you, then stop attempting to communicate w/her. If she wants to talk to you, she'll do so. The more you try to communicate w/her, the more she's going to do the opposite of what you want. She knows that she's driving you up the wall by ignoring you, so do the opposite. When she sees that you aren't bothered by her behavior, she very well may start gravitating towards you.
How about giving us some additional info on your situation?
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.