Once Upon A Time: Billionaires in Disguise: Flicka (Her Royal Bodyguard Book 1) by Blair Babylon

When a modern princess falls in love with her bodyguard, a royal fairy tale turns dangerous.
When princess Flicka decides to flee her violent ex, her bodyguard, Dieter, is the only one who can help her. But their irresistible attraction heats up in ways neither of them expected…