I guess you have No common sense you must have a IQ below 70, because she's using you for your money, I'd say divorce her (do not babysit) the child that is not yours when it's born that's not your responsibility. Everything will be divvied up 50/50 after the divorce most likey you both will get a house each, of course you can get custody of your three (biological children) or visitation rights remain in their lives but not the new one. Also stop having sex with that whore wife of yours you don't know diseases she's carrying and should think of your health, Open marriages ends up in divorces personally I think it's disgusting to share people but some people make that choices in their lives.
Be a man and grow some balls and contact a divorce lawyer immediately or you will regret it for the rest of your live but if you wanna be a doormat then lay down. Good Luck sources (experienced).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.