A Fantasy

I
This was the title of an email I received one day
From an unknown girl
I opened the letter
No message

Weird

The next day
In the evening I received another email from her
And this one was titled
love

I opened it
But the message box was blank again

The third day before I’d open my mailbox
I could already guess the title of the next letter
And I even typed youin my password box by mistake

I grinned and finally opened my mailbox
I opened it a hundred times during the whole day
But there was not a single letter from the unknown girl
None

My curiosity unsatisfied
I eventually went to bed
But even in my dream I received no letter from her

The next day I managed to open my mailbox only by the twilight

Yes
She had sent one
But this one had no title
All I read in the subject area was

[none]

I hastily clicked on the word
My PC screen winked at me
And in an instant I read a message
but you

The unknown girl took 4 days and 3 messages
To explain this to her beloved:

I love none but you