Composite image of Robert and John on Emmerdale, both looking upset (Credit: ITV/Composite: EI)

A new Emmerdale fan theory has suggested that John Sugden isn’t entirely who he’s claiming to be – with one idea predicting that he could be Robert’s former cell mate… and lover.

This comes following last night’s episode (Wednesday, November 6), in which John tried to get Aaron to open up about his relationship with Robert. The typically bull-headed Robert was having none of it, leaving John frustrated.

“What are you, jealous?” Aaron asked as John demanded to know whether he still had feelings for his ex-husband.

“Why would I be jealous of someone like him?” John responded.

A curious comment to some – with one viewer predicting that John’s remark could hint at a surprising shared history between the pair.

John and Aaron talk, but it doesn't go well (Credit: ITV)
Aaron and John had a heart-to-heart, but it didn’t go too well (Credit: ITV)

Does John know Robert on Emmerdale?

Writing on X last night, one fan shared this intriguing theory, saying: “Yep this new Sugden is a FAKE Sugden. Him and Aaron talking about Robert and he says a man like him… Scorned lover AKA Robert’s cell mate.”

“I think John isn’t the real John and he’s been in jail with Robert, remember the name on the dog tags…something is not right,” said another.

Could ‘John Sugden’ actually be a former cell mate of Robert’s – and a scorned lover too, at that?

This isn’t the first time that viewers have been left wondering whether there’s more to John’s past than meets the eye. John holding on to a pair of dog tags engraved with the name ‘Aidan Moore’ had some theorising that he might have stolen a former army mate’s identity – although the soap seems to have quashed that one more recently.

Is John hiding something?

Read more: Who’s leaving, joining and returning to Emmerdale?

Emmerdale usually airs weeknights on ITV at 7.30pm, with an early release on ITVX at 7am.

Classic Emmerdale usually airs every weekday on ITV3 at 6am and 6.30am, plus 1.40pm and 2.10pm.

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