Her Renegade by Amanda McKinney

Never fall for your target . . .

Three years ago, Sophia Banks fled her home, finding solace . . . and solitude . . . in the snowy mountains of the Alaskan wilderness. Every detail of her new life was carefully orchestrated, from her job to her hair color—until a scarred, callous mercenary shows up on her doorstep.
Justin’s mission is clear: Find Sophia Banks and interrogate her—by any means necessary— to obtain the information he needs. But when Justin and Sophia survive a blitz-style attack a mere hour after their meeting, Justin realizes he’s not the only man looking for the runaway, and the mission isn’t nearly as cut-and-dried as the paperwork suggested.
When a blizzard moves into the area, Justin and Sophia are forced to shelter in place. Here, Justin learns there is more to Sophia than meets the eye, and he wonders if he can trust her—or himself, for that matter.
As the mission falls apart, Justin must make the biggest decision of his life: go with his heart, or with his gut?