affairette vs two-timing

affairette

noun

  • A brief romantic relationship, especially with someone who is in a relationship with another person, or not one's regular partner. 

two-timing

noun

  • The practice of being sexually or romantically unfaithful. 

adj

  • Sexually or romantically unfaithful. 

How often have the words affairette and two-timing occurred in a corpus of books? (source: Google Ngram Viewer )