The alt is on facebook under "divorcebusting", I'm a fan.
What he says may be hard to hear, but the trick is to listen. You will learn to listen and validate what he feels. Validating just means you understand what he's saying and that from his perspective it must be hard, hurt etc. It takes time to get there.
Regardless of what he says if you listen closely you will find that as you think about it, there are things you want to improve within yourself. This is for you, not him and not as a gimick to get him back. When you start to focus on yourself and the kids you will find the amazing woman you are.