1. She begins her message with no possessive greeting-

Instead of:

'MY beloved Robert'
'MY sweet, sweet Robert'
'MY chrerished Robert'

It's now:

''ROBERT! '

2. She ends her message with no possessive salutation-

Instead of:

'Yours forever and ever'
'yours until death do us part'
'Yours until hell freezes over'

It's now:

'SEE YA! '

3. She tells you she still loves you
BUT

'there's competition for my heart
and I like him, I like him a LOT! '

4. She tells you to be on the look out for her
handwritten letter.
.
It never comes!

5. She tells you
'you're a lot smarter than me', when she knows you're an idiot!

and I was,
because I never saw it coming

Once upon a toilet wall

http://www.poemhunter.com/poem/5-ways-to-know-your-sweatheart-s-dumped-u-in-an-email/