Exposed By The Cyborg by Alyse Anders

A spy must expose his heart to save his mate.

Pax has been a spy undercover at The Prison for years. When he learns of a plot to assassinate the head of the Grus Prime space station, he knows he must get the information out before it’s too late. But when an attempted prison escape leaves him with damaged memory, Pax must go to extremes to fill in the gaps.
Sabeen left Earth, she didn’t expect to end up the supposed mate of a cyborg spy. When she learns that he’s about to undergo a dangerous procedure to help repair his memory and discover to stop an assassination plot, she realizes that she must help him, or risk losing him forever.
Connecting their minds to that of a killer, Pax and Sabeen put their relationship and their lives on the line to help save a man and stop a war.