A Duke for Lady Eve by Kasey Stockton

All she wants is to be a Lady. All he wants is an honest wife.
After escaping to the garden for a reprieve from the stuffy ballroom, Miss Evelyn Trainor bumps into a handsome stranger through a hedge. When he boldly requests an introduction, she lies and tells him a fake name, Lady Eve, positive she’ll never see him again.
But when she returns to the country for Christmas and finds her handsome stranger—the Duke of Alverton—has moved in next door for the holidays, she does what she must to guard her secret. For he has declared the importance of titles and cannot find out she is a commoner.
The Duke of Alverton has been taught one thing his entire life: rank matters above all else. Having recently inherited the dukedom, he is overcome by the inundation of matchmaking mamas and escapes to the country for Christmas.
When he arrives in the country and finds the woman from the ball who not only intrigues him, but carries the rank of Lady, he knows he has found his future wife.