fidelity vs flirtation

fidelity

noun
  • Accuracy, or exact correspondence to some given quality or fact. 

  • Faithfulness to one's duties. 

  • Loyalty to one's spouse or partner, including abstention from cheating or extramarital affairs. 

  • The degree to which a system accurately reproduces an input. 

flirtation

noun
  • Playing at courtship; coquetry. 

  • An instance of flirting. 

  • A period of experimentation with or interest in a particular idea or activity. 

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