A Letter to My Dear Friend

Question

Hello, my most dear friend,

How are you doing,

I know why we are such good friends,

We can be abbreviated by 3 letters,

We can be the go-to and favorite for some people,

There is even a song about us,

We can even come together,

I am salty and you are sweet,

I have not seen you in a while since I have been forbidden from some public places,

Some people cannot bear me nor can they come in contact with me,

Yet, we are the best of friends and I hope to see you soon my good friend,

Thanks,

-Your Good Friend

Who is the speaker and who is the recipient of the letter?

Answer 1

I think this might be a letter

from peanut butter to jelly,

because

1. They go together in a popular sandwich (definitely one of my favorites.), so they're the go-to and favorite of some people -- especially schoolchildren!
2. There is a popular "song" about the time they spend together.
3. Peanut butter is usually salty (though without added salt it mostly just tastes nutty). Jelly is always sweet.
4. Some schools, which are arguably public places, have apparently banned peanut butter...
5. Because some people are highly allergic to peanuts -- they can't come in contact with it.

Answer 2

Could it be

Peanut Butter talking to Chocolate?

We can be the go-to and favorite for some people,

Well, I, for one, would call Reese's PB cups my fave...

There is even a song about us,

https://www.youtube.com/watch?v=6Bwdeb_OGhc

We can even come together,

Oh, baby! REESE'S FastBreak, REESE'S Pieces, Peanut Butter Cup Minis...

I am salty and you are sweet,

Nuts? salty. Chocolate? Sweet!

I have not seen you in a while since I have been forbidden from some public places,

Some people cannot bear me nor can they come in contact with me,

When I was a kid, nobody seemed to have this, but now, it's everywhere.