A new student?

Someone quiet and kind of mysterious girl named Catherine shows up at Nero's school. They become really good friends, even though Catherine is different although they have this strong connection and even have dreams together. Just when they start getting close, Catherine's secrets mess everything up. It's like, will their strange friendship make them stronger or tear them apart? Warning I am new to writing and I am here to gain experience so if you would like to correct me please do!