as usual, it all comes down to what people on this forum consider NTR, and what actual NTR is in these kinds of games and in real life adult scenarios.
i am not into actual NTR, but i would appreciate realistic adult relationships portrayed in this game. Since none of the girls are canonically with the MC, any of them having sex with other people is not NTR. Bella can fuck her husband, Sage can fuck Chad, the restaurant girls can fuck paying customers, etc, etc. People who are opposed to that definitely have some problems, cause guess what? In real life, women that you are into but not yet in a relationship with do in fact have sex with other people. Thats reality for ya.