Blood and Chocolate by Annette Curtis Klause

Vivian used to run with the Gang of Five, but their activities got the pack in trouble. The teenaged werewolves forgot the first role of survival: leave the humans alone. Humans may be weaker and easy to kill one on one, but they don’t forget or forgive or give up. So the pack moved to a new town and Vivian distanced herself from the Gang of Five to discover that it’s hard to make human friends. She’s never really tried before, but she’s lonely without her packmates. Vivian becomes attracted to Aiden, a boy who has a poem published about werewolves. The two date and start falling in love, but Vivian finds that controlling her wolfish instincts is harder than she thought. Will Aiden understand her secret werewolf half if she shares it with him or will he reject if he really knew what she is? Will Aiden survive the Gang of Five’s jealousy, who are disturbed by Vivian’s interest in a “meat-boy.”