Childhood sweethearts Lydia and Arg had dated on/off for seven years, but split off camera earlier this year. Their break up was confirmed in May and had shocked fans, as both Lydia and Arg were house hunting the last time they appeared on TOWIE together.
Neither gave reasons for their split, but Lydia claimed she had "no choice" but to end their relationship and alluded to Arg "letting her down."
While Arg was said to be holding out for a reunion, Lydia had seemed certain on moving on - so you can imagine our surprise when we heard they had spent the night together in Marbella.
A source had told Reveal: "[Arg] has always struggled to let her go and the pair ended up hooking up for one night only."
Arg confirmed the hook up in a video shared by TOWIE's official Twitter account and said his "head had gone" after spending the night with "the love of his life."
Lydia, meanwhile, has reportedly said since that she "deeply regrets" her night with Arg and has insisted she and him are not back together. Like Lydia, her co-stars have too ruled out a reunion, exclusively telling Reveal that they think Lydia is on a "different page" now.
Bobby Norris told us: "I think we were all shocked that it happened. I genuinely believe that Lydia is the [love of Arg's life] and I don't know if he'll ever love anyone as much as he loves Lydia. How many people haven't, at some point in their life, gone back to an ex? It's comfortable and it's a bit of affection, but I can't see them getting back together. Lydia is on a different page."
Chloe Lewis agreed. She is close friends with Lydia and Lydia had confessed to Chloe that sleeping with Arg again was the "biggest mistake of her life." Chloe said: "Arg was hoping that they would go back to how they were, but Lydia is not in that headspace. She's doing really well for herself and she doesn't need anything to distract her."
We asked whether they think hearing Lydia say she "regrets" hooking up with Arg will be hard for him to hear and Dan Edgar said: "I've told him not to get too carried away. I think he knows the deal. He'll always have a hope that they do get together, so he'll find it hard hearing that, but it's done now.
"It's hard for me because I tell him everyday to forget about her, and then he ends up staying in her room. Everything I've been saying... he's ended up being right. He keeps saying, 'I can get her back, I can get her back,' and he's been right," Dan joked. "I don't think they'll get back together, though."
TOWIE returns Sunday 9 October at 10pm on ITVBe.
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