The Dragon Blood Series — Elianne Adams

From Book 1: Trapped in her own body, she-dragon, Stella Montrose has no choice but to find her mate. Whether he likes it or not, he either has to claim her, or set her free, otherwise she'll lose the ability to shift. Sounds simple, only, every time she gets near him, he disappears.

When Brycen Conners signs on to protect an annoying human woman, he never imagined he'd cross paths with his mate. Once the job is done, he'll do whatever it takes to win her heart. Until then, he has to stay away.