It's All in His Gaze (Unexpected Love #3)
Valerie Zahn

Meanwhile, Queen Abigail must rely upon her unshakeable faith more than ever after King Everett receives word of tragedy that throws him into a depression. As he spirals deeper into his grief, it threatens to completely change his character as the husband and father his family has always known and depended upon. He forces his only daughter, Princess Judith, whose heart was set on remaining single, to marry and not just anyone. She must choose a nobleman from a selection of suitors he has picked. Her mind must be made up by the Valentine's Day ball where the engagement will be announced. If it’s not, the king will choose for her.
Trying to find solace from a hopeless situation, Princess Judith travels to her sister-in-law’s farmhouse in the country. While there, she’s reintroduced to an old friend, and a romance is rekindled and set ablaze. However, due to her father’s ultimatum, they can’t be together.
Will the king come to his senses before it’s too late? Will his only daughter be doomed to a life of misery with someone she does not love?