Royal Valentine by Sariah Wilson

 Two Royal trying to escape their lives. Ilaria is a princess who longs to be treated like a normal person. To not have paparazzi follow her everywhere or guys want to be in a relationship with her for her title or family name. She has an assistant who was hired because she looks similar to her. They occasionally swap places. Switch clothes & put on sunglasses & most people don't look to closely to notice the difference. She convinces her assistant to swap with her for two days. She saw a cute guy taking photos outside her hotel. Unfortunately, fate had other ideas for how she spent the first ten hours of her two days off. She got a headache & digging in her assistants purse she finds a bottle of aspirin, or so she thought. She ends up passed out on the sidewalk before she can get back to the hotel. She panics when she wakes up somewhere unfamiliar & can't remember what happened for a bit. It turns out the cute photographer had found her & brought her home. He offers to walk her back & on the way she realizes she can't have him see where she is staying. She is supposed to be a college student who shouldn't be able to afford such an expensive hotel. I think that part is silly because she could be a rich person or come from a rich family for all he knew. She decides to site see & he offers to escort her. A few people recognize her but she manages to avoid a camera & dodges a group of people pointing at him. What she doesn't know is that Callum is a prince. He is running away from his responsibilities. He wants to be a photographer not a future king. And he's a really good photographer. They spend the rest of the day & evening together. When he walks her to the hotel she has already decided to tell him who she is because she has already fallen in love with him. She doesn't admit it but it's so obvious. This is where fate is cruel because before she can confess they are swarmed by paparazzi. They run until they find a place to hide & lose them. When they both confess he doesn't take the news to well. He decides they can't see each other again. And she leaves him with a broken heart on Valentine's Day, no less. However, both have a hard time getting each other out of their heads. This has a HEA ending, of course.