It’s been a dramatic time for relationships on Albert Square, and tonight’s episode of EastEnders confirmed yet another shock affair in Walford.

During tonight’s episode, fans saw Lauren Branning (Jacqueline Jossa) struggle with her husband Peter Beale (Thomas Law), who hasn’t been helping out with newborn son Jimmy after finding out he was blind. Cindy and Kathy Beale then stepped in to help – which led to a shocking revelation from Peter.

Asked why he won’t even pick Jimmy up, Peter exclaimed: “I can’t look at him because it makes me angry. And I can’t look at you because it’s your fault.” Kathy then butted in to tell her grandson he was out of order, but Peter was having none of it.

Fans think they’ve worked out when Lauren and Zack’s affair will be exposed

“Why? Because the doctor said that her being as high as a kite is unlikely to be the cause? Well do any of you think it helped?”

“She was meant to be protecting our son. My son is blind and I’ve got to pretend that his mum has nothing to do with the fact he’ll never see my face,” Peter exclaimed before storming out.

A distressed Lauren then went out to find a drink, although Linda refused to serve her in the Vic, as did Gina in Harry’s Barn.

Zack then took her home – where he revealed all about being Barney’s dad. As Lauren stood up to comfort him, things took a turn when she planted a kiss on his cheek, which led to the lips.

Whitney’s wedding day took a turn last year when found out about Zack cheating on her with Lauren (Image: BBC)

It’s not the first time the pair have explored a connection. Zack cheated on Whitney with her best friend Lauren weeks before her wedding with the revelation causing Whitney to call off the wedding and leave Walford. Now, fans think history is set to repeat itself at Lauren and Peter’s wedding, should the day still go ahead.

Taking to X, formerly known as Twitter, one fan said: “I don’t condone cheating but in this instance you can’t blame Lauren especially after the way Peter was with her tonight .He was so selfish and you can’t speak to an addict in that way.

“She has slept with Zack before so I saw that coming It’ll come out at the wedding #EastEnders.”

Another responded: “Zack is on a roll with ruining weddings then,” with another agreeing: “He really is!”

Others were left fuming with the soap after putting Zack and Lauren together once again. Taking to X, formerly known as Twitter, one fan questioned: “Why did we need lauren and zack again? #eastenders,” as another wrote: “I cannot believe we are doing this again with Lauren and Zack. Like are we being serious right now??????????? #EastEnders”.

Will this just be a one time thing or will the connection between Lauren and Zack go even deeper?