The same type of character is boring when it has been done many times, that is to say the hard-working MC who leaves his wife aside and the bastard who manipulates her appears and the MC doesn't understand anything and when he starts to suspect it is too late, no matter how interesting you consider the NTR, the same plot is boring.
I completely agree with this statement. What I really want in NTR stories is confrontation—real emotional fallout, not just silent suffering or passive acceptance. I’m especially drawn to original NTR stories, whether they follow typical "hentai logic" or not. There are many sub-genres within NTR, and it would be a shame to reduce everything to simple Netorare with a one-sided change of heart.
What I enjoy most is when the wife or girlfriend still genuinely loves the protagonist, but gradually becomes addicted to the pleasure or thrill she feels with the other man. She doesn’t want to lose either, and when she’s finally confronted, she’s forced to make a painful choice.
Sex is a fleeting feeling—it doesn’t last forever. If she chooses the interloper, it’s only a matter of time before regret sets in. Most of these guys aren’t faithful either, and what she gave up might be something she’ll never get back.