A Lot Like Forever by Soraya Lane

Nate King has always thought of his best friend’s little sister as firmly off-limits. But now that Faith is all grown up, Nate is having a hard time keeping away from her. And when Faith applies for the live-in housekeeper position at the King brothers’ ranch, Nate’s world is turned upside-down.
Faith needs to get her life in order, and who better to help her than her childhood crush, and her brother’s best friend, Nate King. She’s loved and lost already, and she knows Nate is a bad boy, so she’s not about to fall head over heels in love with him. Or is she…
The problem is that Nate is sexy as hell, and his Texas-sized charm is irresistible. Which means that all the best intentions in the world aren’t going to save Faith. But when it comes to love, Nate has to prove to Faith that he’s the real deal, and Faith is forced to make the most difficult decision of her life.
Originally published in paperback as I Knew You Were Trouble.