Claimed by the Cyborg by Cara Bristol

Marchand “March” Fellows assumed he had all the time in the galaxy to pursue a relationship with Jules, an alien exchange student from Xenia, until she vanished without a trace. After years of searching, he finds his lost love on the eve of her arranged marriage.

The daughter of the Xenian emperor, Julietta never meant to fall in love with a Terran man while visiting Earth. Leaving to fulfill her responsibilities on her home planet opened up a hole in her heart that could never be filled. When March, now a cyborg, unexpectedly shows up just before she is to be bonded, she struggles to find the courage to turn him away a second time and follow through with her duty. Before she can act, the lovers are thrust into a political conspiracy that threatens the Xenian empire and their lives.