pro-shipper vs relationshipper

pro-shipper

noun
  • One who supports a ship or shipping deemed problematic (e.g., due to incest, age differences, abusive dynamics, etc.), and/or believes in the freedom to create and consume fanworks with such elements. 

  • One who supports a specific ship or shipping in general. 

relationshipper

noun
  • A person who supports a romantic or sexual relationship between fictional characters or real people. 

How often have the words pro-shipper and relationshipper occurred in a corpus of books? (source: Google Ngram Viewer )