The Loner by Rhonda Russell

After an accident leaves former Ranger Lucas “Huck” Finn unable to jump out of airplanes anymore, he’s grateful and relieved to find a new home in Atlanta with Ranger Security…until his first assignment, that is, and he finds himself guarding an heiress whose sole goal seems to be winning the “Biggest Pain in the Ass” award.

But looks can be deceiving and Huck knows there’s much more to her than meets the eye, and what’s meeting the his eyes is pretty damned hard to resist.