The Dom Who Came in From the Cold by Lexi Blake

Kyle Hawthorne once believed his future would be a job in the private sector—a simple, normal life. Fate had other plans and he wound up in the military. Some newly discovered talents caught the eye of the CIA, and in no time he was working with a covert team. He found himself in a relationship with fellow operative, Julia—until she turned out to be the enemy. When her betrayal was uncovered, things got bloody and Kyle returned home broken, searching for a chance to walk the road not taken.

MaeBe Vaughan has never been interested in normal. Her happy place is a dark corner of the Internet, where she disrupts all the bad guys. She has a great circle of friends and a full life. She doesn’t need a man. Until Kyle Hawthorne walked into her life. He’s all wrong for her. Surly. Damaged. His uncle is her boss. But she couldn’t help getting close to him. When his past threatened her safety, Kyle walked out without saying good-bye.

Kyle will do anything to keep MaeBe safe. He faked his death, hid in the middle of nowhere, and watched over her from afar. But when Julia resurfaces, he knows that to protect MaeBe, he’ll have to get close. So close that if they manage to survive, he will never let her go.