The Last of Them All (editing)

What's not enough for one, too much for three, and just right for two? A secret.
But you know teenagers. We tend to break or bend the rules. In this case, three is just right for the secret that these highschoolers hold.
Facit autem virtus nostra nos. Our power makes us one.

"So, what am I?"
"We, we don't know. We're still trying to figure that out." And with that, he got up and left the room. Swirling his coat behind him, leaving us to deal with this information.
I felt as if I had just been slapped directly in the face with a frying pan. What do you mean you don't know what I am? As if I'm some sort of alien creature or something that's going extinct. I'm not a creature to be classified. Yet that was how I felt.