Based on the available information, the collection often associated with "real romantic fiction" and "real love" themes is by Barbara Cartland .

Another reason why romantic fiction is popular is that it often explores themes that are relevant to readers' lives. These themes can include love, heartbreak, self-discovery, and personal growth, all of which are universal human experiences. By reading about characters who are navigating these challenges, readers can gain insight into their own emotions and experiences, and they may even find solace in knowing that they are not alone.