Over a month after the passing of her beloved pet dog, Miley Cyrus is still working through her grief.

The ‘We Can’t Stop’ singer’s Alaskan Klee Kai called Floyd passed away in early April.

In the aftermath of his death 21-year-old Cyrus has suffered an emotional onstage meltdown and given away a replacement puppy.

The pop star’s anguish continued yesterday (May 17) in the form of a lengthy Twitter post in which she expressed feelings of guilt over the dog’s death.

Miley wrote: “There's nothing I want more than to lay and drown this pillow in my tears & think about all my shoulda, coulda, wouldas [sic].

“I keep asking why would the world take my sweet boy from me? I'm just a baby myself... I depend on my mother still. She is the one at the end of the day I want to hold me when I'm sad, scared, lonely. Her one job in this world is to eel me out of harms way... I was Floyd's mommy. I don't know when the regret and the guilt will fade. I don't know if it ever will.

“I feel like I let my boy down. My job was to protect him and I'm not a person that takes failure lightly...Today is one of those days where I can't open the curtains to see the sun... open the windows to hear the world going on around me because to be honest I hate the fact that the world's still spinning. I want it to stop... I want everyone's heart to break the way my heart is breaking.”

The ‘Wrecking Ball’ provocateur finished: “'No matter how much I cry or beg of 'god' to wake me up from this nightmare, it is what it is (at least that's what everyone keeps reminding me). There's no waking up from reality so today I am being a helplessly hopeless human & I'm ok with that.”

Watch footage from Miley Cyrus’ European ‘Bangerz’ live dates below: