Her Royal Rebellion (Royals of Lochland #3)

Isla watched two of her brothers fall in love, and there's nothing she wants more than for her chance to experience the greatest feeling in the world. She has a feeling she's close if the flushed skin, racing pulse, and fluttering in her stomach is any indication. She's just waiting for him to catch on.
Then her father, the King, does the unthinkable. He announces her hand is wide open and available for the best suitor that comes along. As her worst nightmare becomes her reality she must decide between being the dutiful daughter or fighting for her heart.