Funny thing is, I'm into NTR.Nyx is setting you up dude. There are a lot of checks to see if you are interested in Emily. If you checked her out in the pool or if you slept in her bed or if you kissed her on the lips or if you told her she looked sexy on the bike or you stopped her from dating John. If all these booleans are true, she is going to ntr the crap out of you. At some point you will walk in on Emily fucking some dude and you will scream bloody murder. You will demand a ntr tag for this game. Nyx will just say: "Dude she's your fucking mother, she was never a love interest." and there will be no ntr tag, but you will feel that ntr LOL. There is a similar setup for Lexi in chapter 8, 'Alexis_SecretPath', so you better treat Lexi right or you will see some fucked up shit with her and the new bartender\ mechanic.
I choose to save Emily from a lot of drama by not letting her date Melissa's ex, while Erynn is having a crush on her dad and Iris having a crush on her sister. There's some light incest stuff for you.
So your baits have no power here
Also caring about tags is some pea-brained cringe energy