Explosive by Karen Kelley

Ex Special Ops, Dylan Rowley works with a team of men on jobs other men wouldn’t touch. He feeds off danger and the adrenaline rush that goes with it. Yeah, he might joke around and flirt, but that’s only to take the edge off.
When a predator stalks FBI explosives expert Ashlyn Pillar, leaving a trail of bodies and burned out buildings as tokens of his affections, Dylan will stop at nothing to take down the person responsible, even if that means delving into a past that Ashlyn doesn’t want to face.
What dark memories and monsters are plaguing her? Who caused the scars she carries inside and outside? He doesn’t know yet, but Dylan will do whatever it takes to keep her safe—whether she wants his help or not.
He’s part of a team of ex special ops who are bound by loyalty, honor, and truth. They risk their lives without hesitation to protect the innocent.