Our hearts are breaking for Jenni “JWOWW” Farley as she is mourning the loss of her beloved dog, Diesel, who passed away recently.

The Jersey Shore star, 29, wrote, “I will love you forever. Goodbye Diesel… You were my best bud and my daughter’s best friend.”

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News of the beloved French bulldog’s passing comes shortly after Jenni’s fiancé, Roger Mathews, revealed the pooch was diagnosed with an inoperable tumor.

Like Jenni, Meilani’s dad memorialized his trusty sidekick on Instagram.

“My last ride with a loyal friend. Don’t be sad for me. I have 10 years of memories with this ol’ boy. We took him everywhere his last three weeks and he told me it’s time to go now,” the 40-year-old wrote.

“He had an amazing life and made ours more amazing for being a part of our family. Everyone should have a friend so loyal.”

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Any animal lover will agree that losing a pet means losing a member of the family — our thoughts remain with Jenni, Roger and Meilani during this emotional time.