I am also a Non-NTR player and play such games only if you can go on paths which avoid the NTR. I once had a very heated discussion in a game thread because the Dev and his cronies blabbed about that there are non-NTR paths in the game, when it was obvious from just playing a bit that it was pure NTR with a sugarcoating to false flag the players. Still a bit pissed about that.
You will not find such NTR in Pale Carnations! Currently there is NONE NTR in the game that the vast majority of F95 members would define as such, meaning loved ones being stolen away.
Breaking it down a bit:
At this moment we have, if counted very magnanimously, 8 women (Felicia, Hana, Kathleen, Mina, Rosalind, Sophia, Veronika and Dalia) we could define as potential love interests, of which 5 are in the focus (Felicia, Hana, Mina, Rosi, Veronika). Of those five, Hana and Mina are the ones with who you could already come into a relationship. There is no NTR whatsoever for those two so far. The other three Felicia, Rosi, Veronika are the "Carnations", three women partaking in a month of sex and humiliation games. You can start to develop a relationship with them so far in the game, but be aware that they will most likely have sex with others due to the competition. Still, this would not be stealing away loved ones, this is more about prostitution.
Kathleen, Sophia and Dalia are currently just three women we have more contact with than others. There are hints that they could become love interests as well, but this is on the backburner and even if they become LIs, it would not be as expansively depicted as the canonically five.
So unless you see any contact of LIs with other characters as NTR, Pale Carnations has no NTR up to this point in time.