Where did you get the information? I would assume you would not be friends or have contact with the first nurse and I'm sure she would not tell you if she was conspiring against you and her clique would not tell you either?

What would your nurse get for being part of the one nurse's clique and turning against you? What do you have that the first nurse wants?

It is a lot of work to form conspiracies and keep things secret and work with a group which may or may not do what you say. It doesn't sound to me like the nurse who doesn't like you would care that much about you to do all that work and get in trouble.