Rosebush by Michele Jaffe
See Jane run. See Jane die.
Instead of celebrating Memorial Day weekend on the Jersey shore, Jane is in the hospital surrounded by teddy bears, trying to piece together what happened last night. One minute she was at a party, wearing fairy wings and cuddling with her boyfriend. The next, she was lying near-dead in a rosebush after a hit and run.
Everyone thinks it was an accident, despite the phone threats Jane swears were real. But the truth is a thorny thing. As Jane's boyfriend, friends, and admirers come to visit, more memories surface--not just from the party, but from deeper in her past...including the night her best friend Bonnie died.
With nearly everyone in her life a suspect now, Jane must unravel the mystery before her killer attacks again. Along the way, she is forced to examine the consequences of her life choices in this compulsively readable thriller.
I'm loving the sound of this one! It's published in December 2010 (US) and March 2011 (UK)