Married At First Sight's Susie Bradley and Billy Vincent have been trading barbs on social media for weeks. 

And on Wednesday, Susie took one final swipe at her TV husband by branding him an emasculating term, before swiftly deleting it.

While the 25-year-old didn't say the slur herself, she did take to Instagram to share a handwritten card she'd received from a clothing sponsor that called the emotional groom a 'soft c**k'.

The card was signed 'team Susie', which seemed to delight the outspoken blonde.

Despite getting a kick out of the card, the star soon deleted it from her Instagram feed, later telling Daily Mail Australia that she regretted the post.

'I first put it up because I thought it was funny that someone else had written that to me,' Susie said when contacted for comment. 

'But then I took it down because I decided that it wasn't nice and I wouldn't like it if Billy did that to me - even though he has.'

Billy has repeatedly slammed Susie in the media over the last few weeks, calling her 'a soulless shark' and 'a liar and a waste' who only went on MAFS for fame.

He also branded Susie's new boyfriend, NRL star Todd Carney, an 'idiot football player' and 'bubbler boy', a clear reference to Todd's urine-drinking scandal in 2014.

Billy was known for his emotional displays during Married At First Sight, with the 28-year-old bursting into tears after one particularly heated fight with Susie.

Since the show wrapped, the barista has been open about his lingering resentment to his 'ex-wife', often blasting her on social media and in interviews. 

In an Instagram video earlier this week, he said: 'I have well and truly moved on since the experiment. But moving on, it doesn't mean I forget how I was treated. 

'I don't forget because I don't want it to happen again.

'And what people fail to realise about me is, just because I'm kind and I treat people with respect and I'm an anti-bullying campaigner, it doesn't mean that I won't respond - I will OWN you.

'And on a final note, f**k yes I'm salty... Because I was set up with somebody who used the whole experiment as a holiday in Sydney'.

Meanwhile, Susie has repeatedly claimed that her negative portrayal on MAFS was the result of bad editing and insists she is a much nicer person in real life.