TOWIE viewers watched as Charlie had his first confrontation with Frank after learning he'd slept with Ferne McCann while they were still together, and tempers definitely flared.
While at Essex nightclub The Villa, Charlie told Frank: "Ferne might like you but she'll always love me. I think if anyone's getting played it's you, you're a mug."
But Frank shot back: "But I slept with your bird, so who's the mug?" Frank then called Charlie "junior", while he responded by calling him "grandpa". Harsh.
Charlie's sister and fellow co-star Chloe Sims has now jumped to her brother's defence, branding Frank a "jumped up dusty dog".
Taking to Twitter, Chloe blasted: "Just watched the show, (been filming late) one word, who the ffffffs is that jumped up dusty dog talking too!!!!! Fumes!!!!!??"
She then added: "My brother done himself PROUD tonight!! @charlessims_ shouldn't even of lowered yourself to let that thing speak to you!!! [sic]"
Just watched the show, (been filming late) One word who the ffffffs is that jumped up dusty dog talking too!!!!! Fumes!!!!!??— Chloe Sims starship✨ (@Chloe_Sims) March 6, 2014
Charlie's good pal Mario Falcone, who was in the club when the row broke out, also gave his view on the argument, simply stating: "#franktheplank."
Frank shot back with, "Very adult of you little boy", before Mario replied: "Shut up."
Trying to resolve the issue, Frank even suggested the lads sort it out in a boxing match - for charity.
"Listen you've had a lot to say without even knowing me, how about we settle this in the ring with money going to charity?" he suggested to Mario.
@Mario_Falcone very adult of you little boy— Frank Major (@frankomajor) March 5, 2014
Mario, however, appeared a little sarcastic with his response: "Off to bed... Need to get an early night... Up at dawn with my duelling pistols with the old boy ;) night @frankomajor... Love you x," he tweeted.
Frank didn't respond.
Meanwhile, Ferne - who was enjoying a spa trip with the TOWIE girls when the trouble broke out - has also chosen to remain silent...
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