According to the Daily Mail, the reality star was on a night out with fellow 'wives' Charlene Perera and Ashely Irvin and was overheard talking about her relationship.
'Sarah Roza said how much of a trainwreck their relationship is,' the source told Daily Mail.
Sarah also reportedly said: 'All we're doing is keeping up appearances.'
The bombshell comes just weeks after an email from Telv to a MAFS producer was leaked, in which he labelled her 'crazy'.
In the email, the 33-year-old machinery technician slammed beauty specialist Sarah as 'crazy' and revealed he didn't want to have anymore contact with her.
The emails reads, 'Had a chat to Sarah...I have blocked her number and refuse to have anymore talks.'
'I wanted to try and get along strictly for publicity...I no longer want anything to do with this crazy woman.'
The couple have since responded to the alleged email, sharing a video claiming that 'You can't believe everything you read.'
Telv adds, 'This woman isn't crazy...well, she's crazy about me.'
Sarah replies, 'That hurt my feelings,' referring to the alleged email.
Telv finishes, 'It's all good.'