WordRel.com

• someone who shares your feelings or opinions and hopes that you will be successful

  synonym	sympathizerwell-wisher
  derivation	sympathise
  hypernym	admirerboosterchampionfriendprotagonistsupporter
  hyponym	bleeding heartfellow travelerfellow traveller

• a person who commiserates with someone who has had misfortune

  synonym	comfortersympathizer
  derivation	sympathise
  hypernym	communicator
  hyponym	Job's comforter