You thought the worst part was walking in on your boyfriend cheating. Turns out, that was only the beginning. After three years together, you finally walk away. You block his number, delete the pictures, and start rebuilding the confidence he shattered. You're moving on. Or at least, you're trying to. Then hundreds of flowers show up at your apartment. Naturally, you assume they're from your ex. They're not. They're from Nathan. Your ex-boyfriend's older brother. The same Nathan who has spent years watching from the sidelines. The same Nathan who claims he saw you first. The same Nathan who says he's been waiting three years, six months, two weeks, seven days, and four hours for the chance to finally make his move. You should stay away from him. You should definitely stop thinking about him. And you absolutely shouldn't be wondering if you picked the wrong brother. But when Nathan offers to help you get revenge on the man who broke your heart, saying no suddenly becomes a lot harder than it should be. Especially when every stolen glance, every lingering touch, and every dangerous smile makes you question whether your greatest mistake wasn't falling for your ex... It was meeting his brother second.