Covenant Series by Jennifer L. Armentrout

 

Love in my world usually ended up with someone hearing “I smite thee!” as she was cursed to be some lame flower for the rest of her life.

For three years, Alexandria has lived among mortals—pretending to be like them and trying to forget the duty she'd been trained to fulfill as a child of a mortal and a demigod. At seventeen, she's pretty much accepted that she's a freak by mortal standards... and that she'll never be prepared for that duty.   

According to her mother, that’s a good thing. 

But as every descendent of the gods knows, Fate has a way of rearing her ugly head. A horrifying attack forces Alex to flee Miami and try to find her way back to the very place her mother had warned her she should never return—the Covenant. Every step that brings her closer to safety is one more step toward death… because she's being hunted by the very creatures she'd once trained to kill. 

The Hematoi descend from the unions of gods and mortals, and the children of two Hematoi pure-bloods have godlike powers. Children of Hematoi and mortals well, not so much. Half-bloods only have two options: become trained Sentinels who hunt and kill daimons or become servants in the homes of the pures.
Seventeen-year-old Alexandria would rather risk her life fighting than waste it scrubbing toilets, but she may end up slumming it anyway. There are several rules that students at the Covenant must follow. Alex has problems with them all, but especially rule #1:

Relationships between pures and halfs are forbidden.

Unfortunately, she's crushing hard on the totally hot pure-blood Aiden. But falling for Aiden isn't her biggest problem--staying alive long enough to graduate the Covenant and become a Sentinel is. If she fails in her duty, she faces a future worse than death or slavery: being turned into a daimon, and being hunted by Aiden. And that would kind of suck.

Expected publication: 2012