The Love Interest by Helen Comerford

Seventeen-year-old Jenna Ray has just been saved by the world's newest superhero, Blaze. And, in the eyes of the public, that means one thing: Jenna has been cast as the Love Interest.

Jenna has no interest in being a helpless love interest, kidnapped by villains whenever they want Blaze's attention. In fact, she disapproves of the whole hero industrial complex on principle. But then an association of villains offers her a chance to find new information about her mom, who has been missing for ten years. All she has to do is get close enough to Blaze to spy on him.

The more time Jenna spends with Blaze, though, the harder it gets to lie to him. And the more she uncovers about the Hero's Association, the more she realizes that her town is in danger-and she might be the only one who can save it.