Resurrection Heart by Wendy Lynn Clark

A mercenary with a chip on her shoulder. A cyborg warrior with an attraction stronger than his emotion-suppressing implants. Trusting in passion is the only way they will survive…
Talia’s a hardened mercenary owned by the Antiata Deterrence Company until she pays off her debt. She has found only one man worthy of her carefully guarded trust: reformed criminal Logen, the sexy gunner in her ragtag unit of misfits. He’ll never return her feelings, but his strong, silent gaze awakens her uncontrollable desire.

Logen’s passion-suppressing implants have been malfunctioning since the moment he laid eyes on the gorgeous, capable spotter. She sees past his ugly scars to the man inside and he wants nothing more than to wrap her sweet, hot body in his protective embrace.
But when he’s falsely accused of murder, Talia and Logen become targets on the run. The mercenaries must fight off robot assassins, hungry wildlife, and a growing mutual attraction that threatens their survival. Caught in the hostile jungles of a steamy alien planet, Talia must decide whom to trust with her life… and possibly her heart.