Bulletproof

He was built to be bulletproof. She's the one thing that can break him.
Briar Thornton has spent months outrunning her past, but when she's drawn to the small Montana town of Bane Falls with the death of her late uncle and his estate to handle, she runs straight into a new nightmare—and a man more dangerous than the one who tried to kill her.
Roman Syxx isn't a savior. He's a weapon—cold, precise, and programmed by the Dark Forces to destroy anything and anyone. As the lieutenant of the covert Icarus Squad, he's in Bane Falls on orders: infiltrate, eliminate, disappear. But the new girl that randomly shows up in the small town fractures his control in ways no enemy ever could.
Drawn together by their traumas, they burn through each other's defenses until love feels as lethal as war. And when Briar's hidden connection to Roman's mission is exposed, both will learn that freedom always comes with a body count.