love-shy vs love-shyness

love-shy

noun
  • A person, especially a man, who is ineffectual at courtship. 

adj
  • Ineffectual at courtship or attaining sexual intercourse. 

love-shyness

noun
  • The state of being love-shy. 

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