Thirteen ending / spoiler

Evie betrays Tracy. Brooke and Evie go to Mel's house and Brooke tells Mel everything about Tracy, making it sound like Tracy was the one who made Evie do everything. Evie acts like the victim. Mel kicks them out of the house. Mel sees Tracy's scars and Tracy goes into hysterics. Mel kisses Tracy's scarred arm and they go to sleep together.