Protostar:

How do you maintain your love when the universe is out to destroy you? That's a question for Sydney, the star-child, and future victim of the Torrian race. Prince William is the chosen Torrian sent on this murderous mission. Brought up to hunt and deflect all feeling, determined to bring honor back to his family, it's not until he is in close proximity to the star-child that his barriers come crumbling down.

Full of action and intensity Protostar is an exciting scifi romance. I enjoyed its lightheartedness as well as the constant action and would def recommend to all YA lovers.