A Partner who speaks of love and else but fucks everywhere around possible even without the known of the other Partner is a doublecrossing backstabber and don´t deserve to be loved. If you want to be indipendent or whatever excuse is used for cheating when fine fuck around, but don´t believe from this can be really come love because love is 50% trust.
You don't understand what NTR is then. Many cases of NTR start with coercion, blackmail, rape, or other non consensual methods. It's not a doublecrossing backstabber, it's someone who is forced to make a choice against their will. But even in those where it is consensual, adultery in and of itself isn't enough for it to be NTR. NTR is about the bond of trust being broken between the two parties. So, in the case of a Netori story, where you play as the third party coming in and destroying someone else's bond of trust, it's actually important that the netorare'd partner, does have a functioning bond with their husband, boyfriend, wife, girlfriend, son, brother, childhood friend, etc. They have to have a love or affection for that person. And it has to be real. Because until the netorare'd partner makes a choice that acknowleges that they are betraying that bond, choosing the Netori over their bond, it isn't NTR, it's just adultery.
This choice isn't something that comes easy. In the case of Netori stories the guy isn't going after sluts. He's going after faithful wives and girlfriends. He's going after people whose relationships will be destroyed by his interference. He gets off on that destruction. He doesn't care about the women aside from seeing them as a means to an end, and that end is the destruction of their relationship.
If the NTR is following the Netorare'd partner, the woman in most cases, though a man can also be in this role, then it's possible to show that the partner is a slut and still make the NTR case, because it's this person who is getting off on the action, not the Netori. Of course, if you're following this character that makes you the betrayer, or as you put it, doublecrossing backstabber, so it isn't what you describe.
In the case of a story that follows the real victim, the partner who through no fault of their own has their bond stolen from them by a Netori, it can happen that the netorare'd is a slut, but again it's kinda not the most common. Usually if she is a slut it's more of a cuckoldry story, and not NTR. In these stories where you follow the role of the person losing their bond, it's usually important to show the devastation of that loss, meaning that it's got to be real.
So, in closing, if the story is told from the Netori perspective, you ruining someone else's bond, you're not going after the betraying backstabbers who are easy pickings, you're attempting to destroy a faithful relationship.
Furthrmore, as I mentioned above, NTR doesn't have to be a sexual bond. A netori can also come in and steal your best friend from you, causing the best friend to become neglectful of your relationship. Often in these cases the Netori will also be a bully or person with power over you, like your father, or a teacher, who is also a bully. NTR can happen in non-incestuous families as well. If your mother gets a new boyfreind and the result of that is her neglecting her maternal duties to you, making sure there's dinner, and lunch, and money when needed, being there for you, etc, or if she ignores that said new boyfriend is abusive toward you, then you are also being NTR'd. Same can happen with a father, brother, sister, etc, as they begin to destroy the bond of trust between you.
As you can see, NTR isn't some simple, slutty girl betraying her boyfriend/husband. It's a much more involved and complex idea. The way we throw around the NTR tag around here has made it worse, because it means people like you don't understand what it is, but suffice to say, no, you aren't fucking a doublecrossing backstabber. You're destroying what was once a functional relationship.
Soo yeah i would ntr any guy because ist his and her relationship Problem and they can think for themself but if i would know my Girl/Boy would cheat on me then i would go the very next Moment. And I definitely won´t start to share willently my Partner with somebody else because i´m not stupid enough to believe the Partner can´t "love" one other Person and leave me. You could say by ntr or cuckolding could you not be leaved because you aren´t going to fuck anways anymore, but for an relationship it is more than putting the dick/dildo in.
If the partner being betrayed in an NTR scenario finds out, it is over. What you describe, if you find out you are being cheated on and leaving, is the outcome of NTR, because NTR's prime function is homewrecking or destroying a relationship. There should have been no problems in that relationship, again, the Netori isn't going after broken homes, he's going after the ones to destroy. If the story ends in you watching or allowing it to happen, it's not NTR, it's cuckoldry. They aren't the same thing. In NTR, the betrayed partner cannot consent, or else there is no betrayal in the first place.
