TOWIE viewers saw Diags and Jon come to blows in last night's episode of the ITVBe reality show (10 August) and it is fair to say they will not be making up any time soon.
Fans had previously seen Jon admit to sending voice notes to Katie Wright while she was dating Dan Edgar - before accusing her of sleeping with someone else - and, as Dan's best pal, Diags is firmly on his side.
Speaking to the official TOWIE website following their heated exchange, Diags said: "It's very simple, Jon made a dog move on Dan by messaging his bird behind his back."
Recalling their argument, he added: "When Jon came in, I might have been shaking my head, then he just went nuts and started calling me 'fat'. I've lost 2 or 3lbs since four days ago, so I don't know where's he got that from....
'"He just started going crazy at me, so I told him to do one and f*** off."
In his own video, Jon had spoken about Diags and blasted: "He ain't my mate. He means f*** all to me."
Responding to this, Diags said: 'We were ok, we weren't pals pals, but we would go to the same places. But apparently he said we were never pals, so f*** him, f*** the kid.
"At the end of the day, I'm going to back Dan 100 per cent. He's my best pal. Him coming in here and being all defensive and taking all his anger out on me, I don't give a f***. Now I'm going to think he's even more of a d***head."
It's quite clear this pair aren't ready to kiss and make up!
TOWIE continues at 10pm on Sundays and Wednesdays on ITVBe.
10 reasons why we want to be in TOWIE: