Qwin by Alyse Anders

As the Qadrus’ doctor, Qwin has patched every type of wound. He’s put himself in danger countless times all to save others. When he first lays eyes on his mate, he realizes two things – she’s the most beautiful woman he’s ever seen, and she’s ill. Wanting to cure her pain and suffering he’s shocked when she doesn’t want to be saved.
Olya has spent her entire life having others do everything for her. Not because she isn’t capable, but because of their guilt over her condition. When she learns that the Black Guard wants to use her as a weapon, she has no choice but to put herself in Qwin’s care.
After they escape peril and retreat to a secret base, they are quickly discovered again by the Black Guard. Qwin and Olya must trust one another to help save their companions, with all of their lives hanging in the balance.