Texas Knight by Cat Shinier

In order to further expand his company, the rich and successful businessman Shamar Shalazar invites young talents to take part in a selection process in Dubai, with the winner earning the opportunity to work in his international company. Among the young invitees is German, Luna Marie Buchholz, who has just graduated in geology, and is overwhelmed to be chosen.
Shamar is fascinated by the young woman, who, despite his attempts to get closer, shies away from his initial advances. Yet, despite her reservations, she finds herself drawn to his dark mystery.
When Shamar saves her in an emergency situation, Luna soon discovers her own deep feelings for the mysterious CEO can no longer be hidden. She falls head over heels in love with him and agrees to Shamar’s desire to accompany him to his native Texas, opening her up to a whole new side of the man she loves.
But Luna has no idea about Shamar’s dark secret and the other woman in his life …