The husband of I'm A Celebrity... Get Me Out Of Here! star Jacqueline Jossa can be heard calling his ex the 'C' word and threatening to stab her in a shocking recording that resurfaced this week.
In a clip of Dan Osborne speaking to Megan Tomlin, the mother of his first child, the fitness fanatic calls her a "[bleeping] tramp" as he demands to know if she has slept with another man.
The Sun, which republished the recording this week, first discovered it in 2015, shortly after Jac and Dan welcomed their first child, Ella.
The staggering verbal attack sees ex TOWIE star Dan threaten to stab Megan with a knife if she slept with another man - and swear on their infant son's life he will do it.
"We are both going to move on," Megan says in the clip.
I will stick a knife up your [bleep].
Dan replies: "You're not going to have sex with another man. The minute another guy's penis goes inside you, I will stick a knife up your [bleep]. Do you understand me?"
According to The Sun, the clip reportedly dates from 2014, when Dan was arrested for assault.
Dan has subsequently apologised, saying: "It has taken me a while to find the right words but I would like to say that I am truly sorry to anyone who was offended by what they heard.
"I am unable to talk about the difficulties with my current family situation but I am taking steps to resolve it to achieve the best outcome for my son. I am ashamed and embarrassed that I allowed myself to reach such a dark place that I behaved in a way that even I didn't recognise.
"While I acknowledge that there is absolutely no excuse for my deeply regrettable behaviour, I plead for some understanding that I had no intention of violence.
"There are always two sides to every story and all of my friends and family who are close to me know that I’m not a violent person capable of anything like this. My words were said in anger and desperation at a very difficult time.
He went on to add: "I love my son Teddy very much and I'm doing all that I can to see him as often as possible.
"I'm also very sorry to everyone at TOWIE that I have let down and thank them for their understanding and support while I take a short break to concentrate on my family."
Earlier this week, it was reported that Jac had threatened to quit I'm A Celebrity amid claims Dan had cheated on her with Love Islander Gabby Allen, ex girlfriend of Jac's campmate Myles Stephenson.
The Rak-Su singer allegedly told Jac he believed her husband had a fling with Gabby - and the former EastEnders actress was said to have been "beside herself".
It's since been reported that Dan has jetted out to Australia to confront Myles for accusing him of having an affair.
According to The Sun, Dan was due to fly out on Sunday - but changed his flights in order to be in the country if Myles becomes the first celeb evicted from the show.
But all was peaceful and positive on the ex TOWIE star's Instagram page though, where he posted a snap of himself at the airport with his daughters Ella and Mia, and wrote: "Just landed in Oz! I seriously can't wait to see their little faces when they see Mummy. Obviously Mia hasn't got a clue, bless her!"
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