The Widow (Ladies of Miss Bell's Finishing School #5)
Laura Beers

Alden, Lord Dunsmore, has no desire to attend a house party, but he decides to accept the invitation rather than spend the holiday season alone. Again. It helps that the party will be hosted by a woman that he finds most intriguing. This will give him the chance to spend additional time with her.
As Jane recruits Alden to help with her matchmaking attempts, she slowly lowers the barriers around her heart and begins to trust the charming lord. But when he discovers she has a secret that she's been keeping from him, will he be able to forgive her for her deceit? Will the magic of Christmas be enough for two vastly different people to take a chance on love?