Happy Valentine's Day!

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Across
  1. 1. Location of sweetest reunion to date
  2. 4. Italian hiking
  3. 7. Billy Joel song
  4. 8. Premier sandwich part, for O
  5. 11. First date in woo
  6. 17. Sole pilgrims at this hostel...
  7. 18. Deseeding this fruit is a labor of love
  8. 20. Forgotten camping item
  9. 21. Drinks ordered at 3PT Gala, colloquial
  10. 22. Holy grail of potable water sources
  11. 23. A dear place S shared with O
  12. 24. Premier sandwich part, for S
  13. 27. Euro summer sweet treat
  14. 28. Hoban recipe Liv can't successfully recreate
  15. 29. Liv's first camp site
Down
  1. 2. Term of endearment?
  2. 3. North End breakfast sandwich spot
  3. 5. Place where S&O said 'I love you'
  4. 6. Best philly mass to date, for O
  5. 9. 109 tenant that gives S itchy eyes
  6. 10. A special gift from Marseille
  7. 12. Title earned after completing St. Michael's 5k
  8. 13. NYC bday show (1/2)
  9. 14. Personal hygiene item that S does not believe in
  10. 15. Cold ocean swim in Early June
  11. 16. First date in philly
  12. 19. Where S&O met
  13. 25. NYC bday show (2/2)
  14. 26. Professor in Spring '19
  15. 28. Split the G