fair-haired boy vs truelove

fair-haired boy

noun
  • Someone's favourite, especially a young one; a blue-eyed boy (British), (Australian) 

truelove

noun
  • One who is truly beloved; a true love. 

  • A plant, Paris quadrifolia. 

How often have the words fair-haired boy and truelove occurred in a corpus of books? (source: Google Ngram Viewer )