The pair, who got together in March, ended things last month, although they tried their best to keep the split quiet - and save it for the cameras, as we saw on last night's TOWIE (Sunday, 30 September).
A TOWIE source close to the couple told us: "They've been over for a while now."
© WENN
On last night's show, Gemma revealed that she was already dating her ex-boyfriend Rami - and that they had been a couple for a few weeks. It was unclear whether there had been an overlap with her and Arg's relationship.
And adding to the confusion, while Arg insisted he dumped Gemma before his lads holiday to Ibiza, the curvy star insisted they were still an item then. She also went and asked Diags if Arg had cheated on her while in Ibiza.
Things have been looking down for the couple since the very beginning, when insiders told us that they were only playing up their romance for the cameras.
© WENN
"Gemma will do whatever it takes to raise her profile on the show," a source told us at the time, adding: "Arg hoped snogging Gemma would make [ex-girlfriend] Lydia jealous."
But eventually things progressed between the pair and they insisted they were serious about each other – often tweeting their love for one another, despite Gemma regularly being in tears on the show because of Arg's insensitive weight jibes.
Last week we told how they were spending less time together – especially after Arg, 23, jetted off to Ibiza, where onlookers claimed Gemma, 31, was the last thing on his mind.
But, according to reports, it's not all innocence for Gemma either after she was overheard asking a pal to set her up with another man at an awwards bash recently!
Read the full story on Gemma and Arg in this week's Reveal magazine, out tomorrow.
Read more:
TOWIE v Made In Chelsea: It's a turf war!
TOWIE's Lydia Bright hosts a fashion show in Birmingham: pictures
Lucy Mecklenburgh looks gorgeous in Topshop dress at charity morning
