Don't Look Back - Jennifer L. Armentrout - Bog

Samantha is a stranger in her own life. Until the night she disappeared with her best friend, Cassie, everyone said Sam had it all-popularity, wealth, and a dream boyfriend. Sam has resurfaced, but she has no recollection of who she was or what happened to her that night. As she tries to piece together her life from before, she realizes it's one she no longer wants any part of.