This Florida jerk is facing charges after allegedly feeling betrayed by man’s best friend.

Mike Lado, 26, of Lehigh Acres, told authorities that he stabbed his girlfriend’s dog to death because the mutt would take her side in arguments, according to news station WNEP.

The Lee County Sheriff’s Office said that Lado returned from drinking Wednesday and got in a fight with his girlfriend.

As they fought, Lado claimed that her Boxer Lab mix named Blue kept barking and growling at him.

When Blue followed him into the kitchen, Lado grabbed a knife and stabbed the dog twice, authorities said.

His girlfriend told officers that the dog was not acting aggressively.

The shelter that put Blue up for adoption defended the dog and called the incident “sick,” news station WBBH reported.

“Dogs want to please. That’s all they want to do, and all Blue was trying to do is protect his mom,” said Jennifer Galloway, CEO of Gulf Coast Humane Society. “He can’t latch that door and get out of the situation. He’s stuck in that situation.”

Lado was arrested Wednesday and charged with animal cruelty.

He remained in custody Friday on a $5,000 bond, according to court records.