The Partner Plot by Kristina Forest

Two former high school sweethearts get a second chance in this marriage of convenience romance by Kristina Forest, author of The Neighbor Favor.
To Violet Greene, fashion is everything. As a successful celebrity stylist, she travels all over the world, living out her dreams. Professionally, she's thriving, but her personal life is in shambles. After surviving a very public breakup with her ex-fiancé six months ago, Violet is now determined to focus on her career. But life hands her something-or rather, someone-that might derail everything.
Xavier Wright did not expect to run into his high school girlfriend Violet-the girl he once thought he'd marry-on a birthday trip to Vegas. As a high school teacher and basketball coach, he rarely leaves his New Jersey hometown, so what were the chances? But when the initial shock wears off, they decide to celebrate together. They feel young and reckless as they party the night away-and reckless they clearly were when the following morning, they wake up beside each other with rings on their fingers.
Their impulsive nuptials might be a blessing in disguise, though, when they realize that both of their careers could benefit from the marriage. So they play the part of a blissfully wedded couple. Yet when their passion comes hurling back, they realize their feelings are just as real as they were back when they were teens. But are their lives too different to stick it through or will they finally get a happy ending?