Trusting Scott McCall

Ariana and Stiles are Scott's oldest friends. But when they were eleven Ariana left. Now she's back and its like nothing's changed.But how will Scott's turning into a werewolf test their friendship? Will they still remain as close as they always were? Or will all the new problems which arise succeed in tearing their friendship apart? Also, why is Ariana keeping so many secrets from the people she loves? Why is she closer to Derek than she is to Scott? Scott X Allison Derek X Ariana Stiles X Malia
Disclaimer : I wish these characters belonged to me, but they don't. :'(