She's With Me by Jessica Cunsolo

A new town, a new love, another chance to stay alive. Arriving in another new town, Amelia Collins vows to fit in and finish her senior year drama free. There can't be any mistakes. Staying under the radar is what keeps Amelia one step ahead of the man who is trying to find and destroy her. But when she's befriended by a group of students who make her feel safe and loved, Amelia struggles to maintain her distance, especially when faced with her feelings for Aiden Parker, whose piercing gray eyes and strength weaken her resolve. When Aiden's ex-girlfriend threatens Amelia in ways that make her easy to find, she has to act quickly. Feeling crushed by her desire for a normal life and not wanting to leave her friends behind, Amelia has an impossible choice to make between survival or the chance at real love.