The beach and bottles probably aren't literal. They just represent how the letters were thrown out and later turned up and were found by some unknown girl.
In the beginning, the girl who finds the letters assumes that the dear hunter decided not to break up with Ms. Leading and threw the letters away, which is why "Oh how she smiles from vicarious love from the one he writes about She must have been so glad for him to throw it out".
Later, she finds the second letter which is streaked with tears and realizes that Ms. Leading did receive the letters. She wonders whether the tears were hers from reading or his from writing.
At the end of the song, she feels bad for Ms. Leading, so she tries to convince herself that Ms. Leading is better off. However, she admits that that seems unlikely.
Also, since I don't think anyone mentioned it, the letters she is reading are from the previous song "Dear Ms. Leading".
The beach and bottles probably aren't literal. They just represent how the letters were thrown out and later turned up and were found by some unknown girl.
In the beginning, the girl who finds the letters assumes that the dear hunter decided not to break up with Ms. Leading and threw the letters away, which is why "Oh how she smiles from vicarious love from the one he writes about She must have been so glad for him to throw it out".
Later, she finds the second letter which is streaked with tears and realizes that Ms. Leading did receive the letters. She wonders whether the tears were hers from reading or his from writing.
At the end of the song, she feels bad for Ms. Leading, so she tries to convince herself that Ms. Leading is better off. However, she admits that that seems unlikely.
Also, since I don't think anyone mentioned it, the letters she is reading are from the previous song "Dear Ms. Leading".