You'll Never Know Just How Much I Hate You

Samantha Knowels has a good life, she's happy with it, even if she is bitter and sarcastic. That's just who she is. At least she knows how to have a good time...
She grew up in a house hold that consists of mostly males other than her mother and herself, thus, she grew up, a tom-boy.
In the hope she would learn to be feminine, her mother sent her to an all girls boarding school called St. Tristan's.
She has three best friends at school, Sasha, Leigh and Jamie. They are like sisters. They doe everything together.
When the new student shows up will their world be turned upside down?

All the girls are sixteen. BTW