His Second Chance by Carrie Ann Ryan

The rules were simple. Protect the woman I love. And try to stop loving her along the way.

Kane Montgomery Carr and Phoebe Dixon’s romance went from a fiery temptation to a fizzled out heartbreak.
Only Kane has no idea why.
All he knows is that he has to keep her safe when a stalker sets Phoebe in their sights.
Yet as the two of them are forced once again into each other’s lives, the truth behind their breakup surfaces and they are forced to face the facts: the feelings and heat they buried aren’t quite as gone as they’d like.
If they give in, they’ll have to face the demons that broke them up in the first place—including a startling secret that shocks them both.
Yet if they don’t, they might lose the chance of a life time.
That is, of course, if they can survive what lurks in the shadows for them both.