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This is one of the saddest moments in anyone's life.

Khloe Kardashian took to Instagram yesterday to pay tribute to her beloved dog Gabbana, who passed away on Monday, and we can't even read her words without crying.

"Last night my sweet Gabbana passed away 💔😩 She was more than a pet. She was my first child, my companion and my friend. She was incredible! She made sure I was never lonely even during lonely times. The house will never be the same," she captioned a pic with her pooch.

"I never thought I would be this devastated over loosing a dog but 14 years, is a long time together. She filled a significant role in my life and I'm forever grateful. I love you Goober!! I'll remember you always! 🐾," she added.

The Revenge Body star took the adorable black labrador after her mom Kris Jenner split with then-Bruce, and she's been with her through some of life's most difficult times.

Stay strong Koko!