They need to have a satirical or comedic twist.
Like this one
You have left me.
That was pretty harsh.
You instantly
had a new one.
You have left me.
And that was mean.
Your new one is ugly.
And relatively small.
You have left me.
That was not very fair.
I am about 10cm
taller than him.
You have left me.
That was quite horrible.
I will not forget it.
And revenge is sweet.
Because it has to be tonight.
I will break into your place.
And there I will hide inside your closet.
In your closet I will hide.
And inside I will wait for you.
You always said I was sick.
And while you sleep
I will shit on your stomach
and then your persian cat gets dunked in the toilet.
Yes, while you sleep
I will shave your dog
and stick a permanent marker into your mouth.
You sleep so soundly
you sense nothing
I will vomit into your shoes
and then you will get a full body tattoo.
Let us see if
your new one still loves you,
when your forehead reads “born to kill”.
I wish you
1000 years of bad sex
and that you die during it
from pox and the plague,
if you leave me.