noun (n)

• a foolish and usually extravagant passion or love or admiration(noun.feeling)

  source: wordnet30
• temporary love of an adolescent(noun.feeling)

  Synonym:
  calf love, crush, puppy love
  

  source: wordnet30
• an object of extravagant short-lived passion(noun.cognition)

  source: wordnet30
• The act of infatuating; the state of being infatuated; folly; that which infatuates.(noun)

  source: webster1913