Once Upon a Prince (Royal Wedding Series, Bk. 1)

Susanna Truitt never dreamed of a great romance or being treated like a princess - just to marry the man she has loved for twelve years. But life isn't going according to plan. When her high-school-sweetheart-turned-Marine-officer breaks up instead of proposing, Susanna scrambles to rebuild her life. The last thing Prince Nathaniel expects to find on his American holiday to St. Simon's Island is the queen of his heart. A prince has duties, and his family's tense political situation has chosen his bride for him. When Prince Nathaniel comes to Susanna's aid under the fabled Lover's Oak, he is blindsided by love. Their lives are worlds apart. He's a royal prince. She's an ordinary girl. But everything changes when Susanna receives an invitation to Nathaniel's coronation.