doting vs lovesick

doting

adj
  • Characterized by giving love and affection. 

  • Showing a decline of mental faculties, especially when it occurs in old age. 

noun
  • Excessive fondness; reverence. 

lovesick

adj
  • Having an aching desire for one's beloved. 

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

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