Breaking the Plan by Jessica Calla

Oliver Stoneridge loves order and plans, especially when they’re laid out on a perfectly formatted spreadsheet. But when his girlfriend, Violet, dumps him, Oliver’s strategy for the future slips away. Desperate to win her back, he begs Taryn, his archenemy and Violet’s beauty queen roommate, for help. Taryn’s gorgeous, thinks he’s a nerd, and wouldn’t know a plan from a prom dress, but Oliver soon finds himself tangled in her web of sexy. Suddenly, Ollie’s falling for Taryn and losing track of everything he thought he wanted.
Taryn Markos knows that agreeing to help Ollie win back her best friend is a dumb idea. Not only because he’s all wrong for Violet but because the more time she spends with him, the more confused she gets. Who knew Nerdilicious himself could challenge her with a single look, even from underneath those unruly eyebrows in dire need of a tweeze? How could she have known that he would accept her and defend her when she needed it the most? Taryn’s hated Oliver for three years. Why does the sight of him now make her come alive?
As things heat up between the frenemies, sparks begin to fly. But Ollie and Taryn know their love-hate flirtationship has to stop—before someone ends up with a broken heart.