Joh Griggs looks tense on set of House Rules before quitting the show

Johanna Griggs had nothing but praise for her House Rules colleagues when she announced she was leaving the show on Wednesday.

But photos taken on set earlier this year suggest that relations between Joh, 45, and her co-stars may have been strained.

In pictures taken on Friday, May 17, the former competitive swimmer looked stern while speaking with judge Wendy Moore and a crew member. 

Warning signs? Johanna Griggs' (right) had tense chats with judge Wendy Moore (centre) and a crew member (left) on the set of House Rules before she quit the reality TV show

Warning signs? Johanna Griggs' (right) had tense chats with judge Wendy Moore (centre) and a crew member (left) on the set of House Rules before she quit the reality TV show

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Johanna raised her hand to make a point while speaking to the crew member. 

As the presenter spoke, Wendy crossed her arms in a rather confrontational display of body language.

It is unclear what the group was discussing, but Johanna described her experience on reality TV as an 'eye opener' when she announced her resignation this week.

Resignation: Joh Griggs (right) announced she is leaving House Rules after seven years as host on Wednesday - but old photos suggest it was a long time coming

Resignation: Joh Griggs (right) announced she is leaving House Rules after seven years as host on Wednesday - but old photos suggest it was a long time coming 

She wrote on Instagram: 'I've got some news for you all. After a great deal of consideration, I recently sat down with the network to ask to be allowed to step down as host of House Rules.

'They have very graciously agreed for me to [resign], which I'm incredibly appreciative of.

'As the show goes into pre-production for the next season, it's the perfect time to hand over the role to someone who will take the show into [season eight].

'Reality TV production has been an eye opener, they are such enormous beasts with so many people involved, and I've had a

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