lovesick vs unfriendly

lovesick

adj
  • Behaving oddly, or as though in distress, due to being overcome by feelings of love. 

  • Having an aching desire for one's beloved. 

unfriendly

adv
  • in an unkind or unfriendly manner; not as a friend 

adj
  • Not friendly; hostile; mean. 

  • Unfavourable. 

noun
  • An enemy. 

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