Kitty by Leah Conolly

Once she was his sweetheart. Now she is his servant. He betrayed her heart and she faced her downfall…and time doesn’t go backwards.
Lady Kitty thought she had found love. But fate had different plans for her.
Lord Seth left her behind, and she is now a spinster, struggling to maintain her position in high society. Now, she has to become a lady’s companion to Lady Veronica, Seth’s strict mother.
Working in Seth’s house, Kitty hopes to escape before his return, but unexpectedly grows fond of Lady Veronica.
Seth, entangled in a courtship with Lady Magdalena, returns and discovers how his actions have harmed Lady Kitty, who is now a servant in his own manor.

Lady Kitty’s and Lord Seth’s paths intertwine once again, but duty and heart tug at their every decision. As the forces of love, loyalty, and justice collide, Kitty finds herself at the centre of it all.