'You have no class!' - The Bachelor Australia S06E05 gets vicious

Things got nasty in The Bachelor Australia's latest episode after a private conversation being overheard triggered a vicious catfight.

The dramatic chain of events started as the family of Nick 'Honey Badger' Cummins visited the mansion to examine his prospective partners.

Nick's sister Bernadette sternly grilled each of the ladies, one-by-one, clinically sussing out which specimen presented the best mate for her sibling.

Romy did as Romy does and used this opportunity to throw another contestant under the bus.

She told Bernadette some cold hard observations about Cass, like "she's 23 and a very young 23".

"She's desperate, and I think that's the emotional immaturity... It's hard to watch, to be honest," Romy told Nick's sister.

Listening in was Blair, who repeated these comments to Cass herself. When Romy caught wind of that - all hell broke loose.

"You have no class and this angers me. Don't f**k with me!" she yelled at Blair.

"It's really rude to eavesdrop on a private conversation... don't ever put words in my mouth again."

Cass sat by calmly as the fiery argument raged, but did say she felt "sick" knowing people were talking about her behind her back.

Whether or not Nick himself heard of what went down wasn't clear - but regardless, he decided to send Blair packing at the end of the episode, which pleased Romy a lot.

The Bachelor Australia screens in New Zealand on Bravo at 8:30pm every Tuesday and Wednesday. It can also be viewed on ThreeNow.

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