She has played all her trump cards and she's still not happy. She's remarried and she's still not happy. She might not ever be happy. That's no longer my problem.
Yes, kids are expensive, but they should be equally shared as an expense and as a joy. This 70/30 split is bullshit. It's demeaning to fathers. And it's based on a parenting concept from the 50's. Sure it makes it easier on the courts if everyone just goes with the plan. But don't. If you want the time with your kids, fight for it.