Under the Montana Sky (A Larkspur Ridge Romance #1)
May Williams

To escape her irresponsible reputation, Mara Hill becomes a helicopter pilot, flying search and recovery missions in combat zones. A traumatic crash, one that leaves her body broken and her career on the line, forces Mara home to her native Montana and into proximity with Reed Thompson, her childhood best friend.
When Reed meets Mara at the bend in the river they’ve always considered their special place, all his feelings for the girl who left home come to the surface again. Mara’s no girl anymore. Time and experience have changed her, but she’s just as desirable as when he professed his love for her the night she left him and Montana behind.
But Reed is tied to his family and ranch as strongly as Mara’s committed to serving her country. Every moment they spend together is one they may regret when duty calls her back to army life.