Married At First Sight star Liam Cooper unleashed on one of his former castmates on Wednesday after they crossed paths at an event.
Liam, 31, said the MAFS bride-turned-'influencer' was the 'rudest person' he'd ever met after she made a point of ignoring him at the party.
He called out the reality star, whom he did not name, on Instagram and accused her of resorting to 'high school bully behaviour'.
'You would have to the rudest influencer I have ever met!
And I can not wait to call you out on your high school bullying behaviour,' he wrote.
'To think you were on the same show and the rudest person I have ever met!'
Married At First Sight star Liam Cooper (pictured) unleashed on one of his former castmates on Wednesday after they crossed paths at an event
He then explained in a video: 'We met the rudest influencer I've ever met in my life, not that she should know who I am at all, but when you're on the same show as this contestant, you think you'd know each other!
'She knew us, but chose to be the rudest c**t I've ever met.
'I'm gobsmacked, your edit, your f**king edit, you got the best f**king edit ever 'cause in real life you're the rudest c**t ever!'
Liam, 31, said the MAFS bride-turned-'influencer' was the 'rudest person' he'd ever met after they made a point of ignoring him at the party
According to Liam, it all went down when he and Beth decided to say hello to Season Ten bride Tahnee Cook.
'We wanted to say hello and to check in, as we both know how the show can be.
As we were midway through a conversation, a previous member from the show walked up and rudely interrupted us to speak to Tahnee, turning her back on us and pushing us out,' he told Pedestrian.TV
He claims she then 'turned to us and gave us a look.' 'She then introduced herself and looked at us like we were a fan.
She then turned her back and SMM Panel continued to talk to Tahnee, even though we were mid-conversation with her.
We were left standing there in this awkward situation.' He described the alleged incident as 'high school behaviour,' adding that he has 'never spoken to her.'
According to Liam, it all went down when he and Beth decided to say hello to Season Ten bride Tahnee Cook.
Both pictured
MAFS groom Liam is pictured with boyfriend Samuel Levi
Dom says she was 'shocked and dumbfounded' to hear to Liam's story, as that's not how she remembered the interaction.
Liam appeared on MAFS in 2021 alongside Bryce Ruthven, Booka Nile, Jake Edwards and others.
The 2022 season featured the likes of Domenica Calarco, Ella Ding, Olivia Frazer and Tamara Djordjevic
While he did not name the MAFS star who snubbed him, a source told Daily Mail Australia he was referring to Domenica, who was also a guest at the Minus18 charity gala in Sydney on Wednesday night.
Liam is dating MAFS New Zealand star Samuel Levi.
They celebrated their one-year anniversary in July last year.<a style="font-weight: bold;" target="_blank" class="class" href="/tvshowbiz/article-11056091/MAFS-Liam-Cooper-Samuel-Levi-celebrate-one-year-together.