The Enlightenment of Nina Findlay by Andrea Gillies
All her life, Nina Findlay has been in a love triangle with two Italian brothers - Paolo, whom she marries, and Luca, who remains her best friend - until a dramatic series of events changes everything, apparently for good. Estranged from them both, facing a future alone, Nina escapes to a tiny Greek island. When an accident lands her in the local hospital, she finds herself telling her story to a mysteriously attentive doctor, and is enlightened about the past and about herself in ways she couldn't have imagined.