Your wife can dream whatever she wants about divorce, but the reality is going to be very different. Since she is pushing for it and thinking she might want to be part of some tribe where women sleep with multiple men to create a "pearl" in their womb (there are also canibal tribes in existence, does she want to be part of one of those too?), then you might want to start considering what might be best for you if a divorce goes though.
1) Your parents: If she's no longer your wife she is no longer "legally" part of your family and has absolutely no right to tell you what you can and cannot tell your own parents.
2)Vacations: That's ridiculous! You wouldn't want to upset or make the new girlfriend jealous so you'll be taking vacations with your girlfriend (or just you and the kids together).
3)The house: Who owns the house? If you own it jointly and she can buy our your half of it I'd say fine (especially for the kid's sake). If not you may need half the equity to purchase new living space. (Or maybe you'll want to buy her out?).
In a divorce you have to look closely at the laws and determine what you'll need. Think about yourself (and the kids too). Yes, you'll be "friendly" for the kids, but that doesn't mean you give up your life and what you are legally entitled to if there is a divorce. Don't agree to anything until you've researched it or spoke with an attorney.
I was in divorce proceedings for six months and even though I DBed, I still did my best to make sure things would go well for me if the divorce went through. Get the best attorney you can find.
There is no arriving, ever. It is all a continual becoming.
