Rebirth, I Kept the Dragon King

The dragon I bled for chose my best friend—then threw me into the sea. Reborn five months earlier, I gave them exactly what they wanted: each other. I took the dying black dragon everyone called worthless. They laughed—until he turned into a dangerously handsome man in my bed. His name? Kaelith. His secret? He is the Dragon King. Now my traitorous ex wants me back, my best friend is burning with jealousy, and Kaelith has made one thing very clear: the Dragon King does not share.