I realize you feel hopeless.

Here's the deal:

This is going to take longer than you want it to.

There's no way around it.

The ONLY way your W comes back is if you SHOW consistent changes. Texting her is not SHOWING her.

You show her your changes during the small interactions you have with her (exhanging your kids/dropping them off etc).

You want to be cool and collect. Confident and easy going. Fake it if you have to.

How were you when you first met her? Did you blow her phone up with texts? Or were you cool and let her come to you sometimes?

You can turn this around Bfice. Its not too late. But like the book says, if you want to guarantee she won't come back, keep doing what you're doing.

Give yourself a fighting chance.