Okay I haven't seen any NTR in the route I played, then again, I've been pretty caring to the girls so I guess that could be a reason. For the people thinking the gf learning how to deepthroat from watching porn is suspicious, in her defense I learned how to perform better through watching porn, and one of my past flings literally learned how to give a better bj from watching a few videos. That being said, I still think there are many scenes yet to be explored in this game, and so I could be wrong about her.
Beyond that, I feel like I saw that ending with the MC finding Nicole unconscious coming. Especially, after she said that line about how she will die soon, which makes no sense seeing as she seems to be a healthy woman in her late-thirties/early-forties, unless she is sick in some way, which cold account for her behavior as well, if you think about it. How she is doing so much to ensure her daughter's success, or how she seems to crave excitement in her life. Honestly, I feel like the route I'm taking can lead to either a super somber end or a miraculous happy ending.