Dark Elves of Ardani by Nina K. Westra

In the kingdom of Ardani, night elves and humans do not mix.
Zara has been a slave to the night elves all her life. When she’s rescued by a group of religious knights known as Paladins, her life is forever altered.
As she struggles to adjust to life among other humans in a remote mountain village, she discovers that humans are not at all what she expected.
As the village is plagued by night elf raids, she encounters an unusual raider—a handsome, brooding half-elf outlaw—and Zara is torn. Nero hates her on sight due to her friendship with the Paladins, but she is inexplicably drawn to him.
When Zara learns that the Paladins intend to eradicate all the night elves in Ardani, her loyalty to the Paladins begins to waver. As tensions rise, Zara must choose between the Paladins who saved her life and the half-elf who is winning her heart.