In Love Without Hurt, there's a part on co-parenting. It talks about how divorce does not end your relationship with your spouse.
He says "both parents must understand the following: Anything you do to harm, put down, or in any way denigrate your former partner, no matter how true it might be, directly and profoundly harms your children"
He has a compassionate parenting contract that both parents sign, in the back of the book. It's good.
I can't remember where I read how to tell the kids.....short term memory lapse. lol
To paraphrase it.......Mom & Dad both love the kids tremendously. Dad loves Mom because she's their mom. Mom loves Dad because he's their dad. But, Mom & Dad aren't going to be married anymore. The kids will have both mom & dad always, & the kids won't have to give up their friends, school or environment. (if that's true of course) which is the main thing the kids are going to need to know.
Doc says kids are fine as long as they keep their friends, their stuff, & their school.
M 19 years, MC for 8 months, DB'd for 8 months 4 kids; 18, 15, 14, & 10 I was never meant to be a doormat. It took me years of therapy to become assertive enough to stop his abuse.