enmity vs puppy love

enmity

noun
  • A state or feeling of opposition, hostility, hatred or animosity. 

  • The quality of being an enemy; hostile or unfriendly disposition. 

puppy love

noun
  • A childish or youthful infatuation with another person. 

How often have the words enmity and puppy love occurred in a corpus of books? (source: Google Ngram Viewer )