SIREN SPELL

For me?

I am unlovable.
Who could ever fall for me?!
A cowardly tyrant
A hideous rhinoceros
Cunning slithering snake.
As I bide my time,
I can finally feel my insides beginning to putrefy.
I barely move and my energy escapes me.
Everything is within my grasp
But I am me.
Who would ever fall for me?