Yeah, sort of like the sex scene with Lily was a foreshadowing of it, where Nina thought she was doing it with Lily but it was really just with herself. (And I do agree with Zahra in her review that it's a bit creepy-and-not-in-a-good-way to be sending that message that lesbian sex isn't real or is really just sex with yourself, but on the other hand it was really cool and interesting how they did it in the movie.)

I was surprised at how much I liked that stabbing scene though. I was like, "You go girl! Take what's yours!" and then she did! Only then it turned out to be different.