I can not understand why W believes it will be "better" being a broken family. Of course W and and I played tag team with the kids, so the frequency of seeing our kids will be less, but the amount of time will be more (unless W does get the 70/30 split she is asking for).
She does not believe this dude, it justifies her actions is all. They will say things like Kids are resilliant, this will have minimal impact on them, etc.... It simply is justification for their actions. Do not let it fool you.
Believe it or not, deep down inside they are still human and have tangeable feelings.....deep deep down inside. Hang in there R2C, it's a bumpy road but you have great shocks.