Alissia's downfall

In Malibu there's a school called Collin McEwen High School.

For the last few years the school has always had the same it-girl Allisia Alivia. She has been dating Tyson for the whole desertion of high school but when a new girl called Sienna Gonzalez arrives at their school in the beginning of senior year Alissia's world seems to come crashing down as people start seeing Sienna as the new It-girl of the school. And when the It-couple breaks up and Sienna and Tyson Rodrigues seem to get closer and closer everyday Allisia does anything to get under Sienna's skin