Tactical Revenge (Love on the Line Book 6). Love on the Line, #6

His past sins may destroy her future. Ex-military sniper, Nick White, drives a big rig to shove time served in Afghanistan into the rearview mirror. He wants nothing to do with people's good intentions or the chain of truck stops his wealthy family owns. Every solitary mile he travels helps grapple with a guilt that runs deep. Brenna Carpenter pays the bills waiting tables at a Pennsylvania truck stop while finishing her business degree.
Her plans don't include desertion at a trailer park like her mother. A truck driver, no matter how sexy, complicates that ambition, but it's the stalker that robs her focus. Mysterious notes and gifts grow more possessive each day. When Nick's violent past threatens Brenna, driving away isn't an option. If he can't track down the man who wants revenge, their budding relationship may come to the end of the road...