breakup vs splitting

breakup

noun
  • The act of breaking up; disintegration or division. 

  • The termination of a friendship or a romantic relationship. 

  • The time of year during which winter ice covering bodies of water disintegrates; more generally, spring. 

  • A loss of emotional control; a breakdown. 

splitting

noun
  • An instance where something splits. 

  • A division in the mind, or affecting one's sense of self. 

  • The cleavage of a covalent bond. 

adj
  • Very rapid. 

  • Resembling the sound of something being split or ripped. 

  • Severely painful. 

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