In The Morning When I leave — Stephen Taylor

Heather Moore was just starting to make her way in the world in her chosen profession of archaeology, when love to her unexpectedly; powerful potent love that invaded her very being. It was as though she had been ensnared like an unsuspecting creature that had, in one moment been frolicking unconcerned in the spring sunshine, the next caught in its constricting grip, the more she resisted the tighter that grip became.
But with it came other conflicting emotions, guilt and betrayal. This man belonged to another, Caroline, her best friend, inseparable since childhood, her confidant. The invader was a potent erotic force and came with sensual promises to entice her, to arouse her, but how could she be so treacherous, so traitorous. Faced with this conflict her instincts told her that she had only one way out; to run. To run away and deny that love.
And so began a repeated sequence of events; she became the girl that ran away. But that love would not let go, and would pursue her wherever she went.