heartbreaker vs lover

heartbreaker

noun
  • Someone, usually attractive, who flirts with or otherwise enamours a person, but does not reciprocate their love. 

  • A match which ends in defeat for a promising player or team. 

  • Something that causes sorrow, grief or extreme disappointment. 

  • An independent role-playing game that attempts to fix various perceived design flaws in an established RPG, but whose few innovations will not reach a wide audience due to its lack of marketability. 

lover

noun
  • One who loves and cares for another person in a romantic way; a sweetheart, love, soulmate, boyfriend, girlfriend, or spouse. 

  • A person who loves something. 

  • An informal term of address for any friend. 

  • A sexual partner, especially one with whom someone is having an affair. 

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