Maybe they do something special for a 7 day cruise, or when Valentine's Day is in the middle of a cruise. I know that they didn't do anything special for Valentine's Day on the Ecstasy for the 3 day cruise out of Los Angeles (to Ensenada).
2/13/09 Carnival Paradise
2/22/09 Freedom of the Seas
83/Azure Seas; 84/Song of America; 88/Stardancer; 92/Jubilee; 96/Viking Serenade; 97/Holiday; 99/Enchantment OT Seas; 00/Elation; 01,02,02,03/Ecstasy; 02/Voyager OT Seas; 03/Victory; 04/Adventure OT Seas; 05/Sapphire Princess 05,05,05,06,07/Monarch OT Seas; 06,07,08,08/Paradise; 06/Freedom OT Seas; 07 Pride; 07 Pearl; 08/Valor; 08/Serenade OT Seas; 08/Coral Princess