It's not that it's incorrect but that is true. Mila is cheating on Paul and that itself isn't the definition of NTR because YOU as Mila don't feel guilt for cheating. If you were Paul as the protagonist and then watching Mila as she was stolen by Bob then you would felt jealousy which means that itself fulfill the definition of NTR. Considering that Mila will lose Paul in NTT/BBC route and him be with another woman then it would be truly be NTR and that is reverse NTR. Then again, reverse NTR could be a female protagonist being stolen and which is my favorite. If you want to see detailed versions of NTR check
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Here is every type explained like A, B and C
I understand what you mean, but your definition of NTR is outdated and does not correspond to what in the field of modern Japanese porn films is written with a plot involving a lead wife.
Yours is an old definition derived from manga.
Today there is practically no such thing as the old plot where the protagonist husband realizes that his wife is cheating on him when she leaves with another man....
This view is outdated and is too closely related to early manga, involving a male character who thinks he is superior to his wife just because he is a man. This is a view of husband-wife relationships that no longer exists.
Today (in 2025) women are always the protagonists of their own lives.
No one is interested in identifying with a hopeless loser hubby who is left alone in despair and abandoned by a wife who leaves with a lover. There are tons of this old stories and they are always the same repetitive, boring shit and they have no more sense today.
Today we tend to define the NTR gender exactly with a wife who cheats on her husband but then goes back to live with him.
basically NTR is cuckold and is related only to the betrayal you a woman to her boyfriend/husband/brother/father etc etc
while on the female side you define the betrayal the husband does to his wife as cuckquean
I suggest this link to get an idea of the definitions of kinky fantasies consistent with today's new lifestyle. Among these is the new approach to fetishes in couples' sexual lives, consistent with today's lifestyle.
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Today there are equal rights---I know couples who live in threesomes---. 2 men and a woman (is perfect for me) and usually the woman is free to have sex with others...
here we are not talking about love and sex as one thing and bound by obligations that if you don't have sex with me I don't love you anymore, (This is childish)
i can love a woman even by having sex with others---
sex is a personal pleasure and if you love a person you have to be happy if he feels personal pleasure regardless of obligations---
a love relationship is not always about pleasure and you have to be together only if both feel the same desire.... but sex is just sex
Modern sex stories (IMO) must be written in the spirit of making one feel pleasure...and pleasure can also be submitting to the other or dominating him or her but it must be a defined role...
..in fact in sex there has always been role-playing...
moral superstructures have always ruined love by creating a witch hunt in which in the end it is always the woman's freedom that is lost
When the witch hunt begins it is always the women who lose their indipedence
Cheers.