Breathe by Isabel Jolie

Coming back to where you started is not the same as coming home.
He never should have let her go. His first love, his first everything.
The one the young doctor can’t forget.
Ten years later, David James knows she’s not the same girl he loved.
But he sees Kairi now with her haunted eyes – and he remembers.
Kairi Morrigan returned to Howell Mountain to hide and make a plan.
Once an international fugitive, she’s now a part of a secretive black ops team.
Her return home is temporary. A shelter without a paper trail.
She didn’t know he had returned. He’s part of her distant past, but he can’t be in her future. David’s good, caring, honest. She’s on the run and tortured.
She knows she shouldn’t but she hungers for his touch, to lose herself in him one more time.
She lost one great love to the people who betrayed her.
The one thing she won’t do is risk another person she loves.
The one thing she can never give him, or her enemy, is a second chance.