Review Detail of ForgottenHope in my world H created by God- fanfic

Why would the mc want revenge when he NTR himself, he made a bunch of changes to the world. But he still allowed himself to be NTR even though he could have PREVENTED IT!! I don't understand man, I simply don't understand. If you are into being NTR just simply say it or give a warning, Author it just saves everyone the time and the frustration from reading this. Or you could be incredibly stupid that the idea flew over your head. But I highly doubt this, because even the most stupidest of culture people would not NTR themselves, will unless they liked it.