[WWTBC] Hero pretends to meet the heroine for the first time on a trip

I don’t remember much about the book, but the hero fell in love with the heroine at first sight and decided to leave two of his employees with her while she finishes school. After graduation, he plans for her to go to Europe where he pretends they never met before while at a party. I believe one of her best friend goes with her and tries to dissuade her to stay, but she didn’t listen.

Any ideas what this book is called? Any help is appreciated 🙃