A killer in the shadows

There's a killer in the shadows,
waiting for you to pass by
You'll never see it coming,
until you're eye to eye
It creeps up on you,
when you're expecting it the least
It's a heartless,
fearless, merciless beast
It will tear you up inside,
but at first it feels good
It feels as though the world is safe,
and everything is good
But remember, there's a killer in the shadows,
he's expecting you to come
He'll claim your heart for his own,
and make your body feel numb
This killer unmasked,
is a monster called love
And in the end you'll be hurt,
by everything it does.