The Impulsive Princess and the Soldier by Cami Checketts

A beloved princess in danger. The man who’s sworn to protect her. Mason has promised to never pursue Princess Kiera, but he can’t stop himself from falling in love with her.
Princess Kiera is the master of schemes. This Christmas, she will win Captain Mason Henson’s heart or go back to university in America with a broken heart of her own. She’s loved Mason since she was thirteen, but he’s never noticed her as anything but a fun sidekick or the ‘Fearless Little Princess’, as he loves to call her. She’s all grown up now and planning to show him that she’s the only woman for him.
Captain Mason Henson is happy in his role of ’Serial Dater’, as his brothers like to quip. He’s charming, funny, and has no reason to settle down. Mason receives the ideal assignment right before Christmas—to guard Princess Kiera and her American friend on a ski weekend in Switzerland. He’s excited to show off his skiing abilities and see his little friend again. But when General Ray asks him not to pursue Kiera or capitalize on the princess’s crush on him, Mason is offended and embarrassed. He vows he would ’never’ pursue Princess Kiera and that the general can trust him to keep her safe.
When Mason sees Kiera for the first time in a year and a half, he is blown away. He had no idea the Fearless Little Princess had blossomed into the most captivating, fun, and beautiful woman in the world. He’s mesmerized by her, but has to stand by his promise to not pursue her.
But Princess Kiera is not to be underestimated. A stalker, kidnapper, and a betrayal threaten to ruin her ski trip and Christmas holiday, but all that matters is Mason admitting he loves her. She won’t back down and she won’t quit until the mighty captain falls—for her.