4.5/5.0 but considering this is a debut in romance, totally worth the bump!
This story catches the reader from the first page. A successful woman who never completely got over her first (teenage) love is relatable to almost every woman on the planet. The question of "what would I do if that crush suddenly appeared at my door?" is not only intriguing but just plain fun to contemplate as one follows Katherine, the heroine, down that road. Given the fact that her summer crush was also a billionaire's son just makes it that much juicier! As the couple wind their way through all the hurt, insecurities and obstacles and sort out what that long lost love means, we get to participate in a truly enjoyable ride!
My only hesitations were in the believability of a highly successful architect who had worked her way up the corporate ladder to the point of wide recognition being so wishy-washy and the somewhat cliche ending. Otherwise, 5 star all the way.
*And, it's CLEAN!!!