I'm afraid you misunderstood me, but seeing your response I can understand why. It's not exactly about not fantasizing, but not acting upon your fantasy. I mean it's about deciding whether you want to give into your urges or not. If you follow them blindly, then you're right, it's animalistic behavior. But there's no free will in following your instincts. The variety, excitement and whatever you carve for (not you, personally) actually destroys the relationship and marriage. True sexuality -in my point of view- can only be achieved in a strong marriage. Basically, you focus on quality over quantity. But you can't have both. Either you form one but deep connection or many shallow ones. The thing is, we humans feel ourselves the best in only one real bond. Not many. Maybe genetically we want to spread ourselves to many women, but that will not cause us fulfillment, only pleasure. I srongly think that swingers, polygamy and open relationships are destroying society. They shatter real bonds, breaks up the institute of a family, and confuse everyone and only leave behind used, empty, sad human beings. In short. You don't become a cheater, because you have urges. You become a cheater when you give into them. We are humans and NOT animals. It is our job to rise above our animalistic urges but not by surpressing them, but taming them. That's why we are here on nofap in the first place. But nevertheless, you are entitled to your opinion and so am I. I wish you a long and clean streak.