How do you win the love of your wife's heart back?

I'm so sorry and I wish I could say keep trying but I truly believe that when the heart changes you can rarely get the feelings back. Your best hope in my opinion is to stop trying and she may and I mean may realize that she wants you if she thinks you are moving on with your life. But for the sake of your children continue being nice but a little distanced. And it may or may not work. Stop trying.