Ruwen: Fated Mate Alien Romance (Mated to the Alien Book 1) by Promo Stacker

From the moment he sees her, Ru knows Lis is his mate. But she's already wounded and distrustful of aliens. How can he prove that he’s trustworthy? If he can’t overcome Lis’s fears, their bond will break before it has a chance to form, leaving Ru dead and Lis all alone in a hostile galaxy.