Hollyoaks spoilers follow.
Hollyoaks aired a dramatic reveal on Friday (January 29) as Sienna (Anna Passey) and Warren's (Jamie Lomas) affair was exposed in E4's first-look episode.
Sienna had a near miss when Summer (Rhiannon Clements) posted the incriminating photo she took of Sienna and Warren kissing through the door of her flat in a pink envelope, which Brody found.
After Sienna rushed home from a run-in with Summer and Warren in an attempt to intercept it, Brody had already picked it up – but, fortunately for her, he hadn't looked inside yet believing it was a card from his new fiancée.
She managed to get him not to look inside before the party by claiming it would be "bad luck" and ripped it up.
She then went back to see Warren and gloated that she was "marrying the man I love" before scolding him for not keeping quiet about their tryst.
While it seemed like Sienna had gotten away with keeping the photo away from Brody's eyes, things quickly changed that night at the engagement party.
After some encouragement from Grace and Warren, Summer shared the photo online using the hashtag #BriennaEngagement, which Brody and Sienna created so friends could share photos from their engagement party.
"Save him the grief and tell him the truth now," Grace urged after they all agreed the secret would be better off out.
Brody, Damon and Liberty all quickly saw the shocking upload on their feeds after Sienna stepped out to get some more champagne – and it's safe to say it very much put a dampener on the celebrations.
As Sienna came back into the room, a devastated Brody demanded to know if she'd been having an affair.
"What are you looking at?" Sienna asked, to which Brody showed her his phone and replied with tears in his eyes: "You and Warren. Have you been having an affair?"
Will Sienna finally come clean?
Hollyoaks airs new episodes from Mondays to Fridays at 6.30pm on Channel 4, with first look screenings at 7pm on E4.
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