noun (n)

• a positive feeling of liking(noun.feeling)

  Example:
  He had trouble expressing the affection he felt.
  

  Synonym:
  affectionateness, fondness, heart, philia, tenderness, warmheartedness, warmness
  

  source: wordnet30
• The act of affecting or acting upon; the state of being affected.(noun)

  source: webster1913