The King of Her Heart by Emma Kingsley

After watching her two best friends first date then marry celebrities, Paisley Goldberg is sure a life in the spotlight isn’t for her. She could never fall in love with a famous man… But then she meets Alex and suddenly she’s left questioning her biggest boyfriend rule.
Alex is smart, fun, and, like Paisley, spends his free time reviewing films online. They would be a match made in Heaven. Except he’s royalty, and there’s no stepping away from that level of fame.
Prince Alessandro has spent years in New York running away from his royal duties in Belmonte. With a flourishing software business and philanthropic pursuits to fill his days, he finds himself happy. But then Paisley arrives, and he sees what he’s been missing all along.
As the two of them fall into a deep, intimate friendship, they struggle with their secret desires for more. Alex never wanted fame, but it’s in his name, in his blood. He can’t just throw it away.
Most girls want to be princesses when they grow up, but Paisley wants to keep on being a waitress. She doesn’t belong in Alex’s world, and as time goes on, that becomes more and more apparent.
Can a waitress and a future king be meant to be together forever?