Until Sally I was never happy
I needed so much more
Rain clouds oh they used to chase me
Down they would pour
Join my tears
Allay my fears
Tend to me from heaven
Sally Cinnamon
You're my world
I pop pop pop blow blow bubble gum
You taste of cherryade
There is something here you must show me
From what you are made
Sugar and spice
And all things nice
Tend to me from heaven
Sally Cinnamon
You're my world
Your eyes are gazing back from
Every little piece of glass
You seem to smile from every place
Sally Cinnamon
You are my world
Then I put the letter back in
The place where it was found
In a pocket in a jacket
On a train in town
Tend to her from heaven
Sally Cinnamon
You're her world
My interpretation is that everything up to the last verse is part of the love note the narrator finds in the jacket. You might invent a different scenario for yourself, but the fact remains: some chick is hot for Sally.