The Rules of Courtship by Kasey Stockton

In the game of love, the heart seldom abides by the rules…

Ruth Wycliffe always thought falling in love would be easy. But after countless introductions and no promising prospects, she’s starting to lose hope. Desperate for a change, she strikes a deal with her good friend, Oliver Rose: at an upcoming house party, they’ll help each other find the perfect spouse.
Oliver has always followed society’s rules—until now. Helping Ruth should be easy, but the more time they spend together, the more complicated things become. Suddenly, finding a spouse doesn’t seem so simple when he’s starting to wonder if the perfect match has been right in front of him all along.
But love was never part of their arrangement, and when Oliver uncovers a devastating secret, he knows he can never ask Ruth to choose him. Marrying her would mean tying her future to his uncertain fate, and walking away is the only honorable choice.