Valentine's Day puzzle

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Across
  1. 2. to say "I love you" to someone
  2. 4. woman in a couple
  3. 5. sadness after a relationship
  4. 6. hug
  5. 9. flower with thorns
  6. 11. intense emotion
  7. 13. when you like someone but they don't like you
  8. 14. a romantic instrument
  9. 15. to tell someone "I am coming"
  10. 16. red body part inside you
Down
  1. 1. man in a couple
  2. 3. real romance
  3. 7. many flowers
  4. 8. to joke with someone in a romantic way
  5. 10. promise to marry someone
  6. 11. to say "will you marry me?" to someone
  7. 12. the best partner for you