EastEnders exposes Zack and Lauren's secret in Whitney exit week

EastEnders spoilers follow.

EastEnders' Whitney Dean will learn the truth about Zack and Lauren's betrayal ahead of her final episode.

Viewers know that Zack cheated on Whitney with her best friend Lauren a few weeks ago, and has been hiding his guilt ever since.

Despite ongoing pressure from Whitney's step-mother Bianca – who knows the truth and wants him to come clean – Zack will have bigger things to contend with when Whitney gives birth to their baby daughter, Dolly.

lauren branning, whitney dean, zack hudson, eastenders

By the time next week arrives, Whitney and Zack are a vision of happiness with Dolly, but Zack's bubble is short-lived when Bianca arrives home with Britney – who now also knows what happened.

Zack makes his excuses to speak to Britney alone, where he pleads with her to keep quiet about Lauren.

Zack then realises he failed to tell the Square about he and Whitney's cancelled wedding.

whitney dean, zack hudson wedding on eastenders

As Zack sets about spreading the word, Whitney becomes concerned by Britney's distracted behaviour and chalks it up to her adjusting to Dolly's arrival.

When Zack reasons that it could be because of the cancelled wedding, Whitney decides that they should get married later that day as originally planned.

Lauren later arrives at No.25 with Whitney to get ready but is overcome with guilt when the pair have a heart-to-heart.

lauren branning, whitney dean, eastenders

Zack is also struggling with his guilt but covers to Martin and Sharon when they question whether he's okay.

With Britney unsure over what to do regarding her recent discovery, she is given food for thought when Lily brings her up to speed on Whitney's previous heartache.

Britney ultimately decides to stay quiet for now and let the wedding go ahead.

bianca jackson, britney, whitney dean, eastenders

Whitney is soon walking down the aisle with baby Dolly, with Lauren by her side.

Britney joins Whitney and Zack at the alter and they say their vows. However, Britney is unable to contain herself and blurts out that Zack and Lauren slept together.

Whitney is left reeling at Britney's revelation, but will Whitney believe her?

That remains to be seen, but it's already been confirmed that Shona McGarty has left her role as Whitney and her final scenes will air next week.

EastEnders airs on Mondays – Thursdays at 7.30pm on BBC One. The show also streams on BBC iPlayer, where most episodes drop early at 6am ahead of their TV broadcast.

Read more EastEnders spoilers on our dedicated homepage

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