She's a wallflower florist; he's literally a rocket scientist. But Callie and Nate have been best friends since they were in diapers. They've seen each other through every milestone and, as long as they've got each other, anything is possible ... or so Callie believed.
As heartbroken college freshmen, the polar opposites, vowed to marry if they were still single at 33. Now, two months from their pact's deadline, what seemed like a fun, ridiculous notion, suddenly has the spark of potential for eternally single Callie and the never serious Nate. But there's a complication: Nate has just met perky, way-too-perfect Beth and he wants Callie's help in creating her magical arrangements to woo Beth. Yet, as the romance between Nate and Beth grows, Callie sees her best friend drifting away. Worse still, feelings they never had for each other are suddenly budding between them (at least on her part).
When Callie's father reappears after nearly two decades with a devastating prognosis, Callie must face the betrayal of his abrupt departure and years of silence. As she weeds through the tangle of tumultuous emotions, she uncovers the lies she's wrapped around herself as self-protection. With the clock ticking on her father's life and Nate's single status, Callie must decide: is she strong enough to bury a lifetime of nurturing her feelings of unworthiness to take a chance at happiness (and a bit of harmless floral sabotage), if it could ruin the relationship with the one person she's ever fully trusted?