Bound by Duty - Bound Series, #1

Amelia grew up in a world of half-truths. She knows she's an Elder, but has no idea what that means. Her father reminds her daily that she must maintain control, but he refuses to explain why. Even worse, she's betrothed to the prince of the Immortals and doesn't even know his name. Finally breaking free to live a few normal years at a community college, the last thing Amelia expects is to find her best friend in a cheeky southern girl, or fall for a self-assured human who sees her for who she is, not what she will become. As she learns more about herself, Amelia realizes the line between love and duty is a thin one.
As her power continues to increase exponentially and her questions are slowly answered, Amelia must make the ultimate choice. The question is, will her head win the battle, or her heart?