EastEnders fans can expect an emotional rollercoaster as Alfie Moon drops a major surprise on Kat Slater — a romantic marriage proposal that sends her heart soaring, only for it all to come crashing down thanks to a horrifying digital discovery. What begins as a hopeful fresh chapter for one of the soap’s most iconic couples soon spirals into suspicion, betrayal, and a potentially shattered future.

Kat and Alfie have long been the beating heart of Albert Square, their love story marked by fiery fights, passionate reunions, and more drama than most couples could survive. Over the past 23 years, they’ve been on and off more times than anyone can count. And now, Alfie is ready to take another shot at forever, believing that this time — just maybe — they can finally get it right. The proposal comes amid an unexpected new business venture that reignites Alfie’s dreams and Kat’s ambition.

It all starts when Harvey attempts to purchase a fancy limousine from his old acquaintance, Cheeky, hoping to dive into the luxury car hire business. Unfortunately, Harvey falls short financially, and things worsen when he tries to convince Kat’s fellow cab drivers to go in with him. Kat, still holding a grudge against Harvey for how he treated Jean, is quick to shut him down. But the seed of an idea has been planted.

Inspired by the potential for profit, Kat decides to pursue the limo business on her own — but not alone. She ropes Alfie into her scheme, proposing they become business partners. Despite some hiccups — including Cheeky hiking up the limo’s price and revealing there’s a silent partner involved — Kat charges ahead. To secure the deal, she even asks Phil Mitchell for an advance on her divorce settlement, highlighting just how committed she is to her new plan.

Meanwhile, Alfie’s creative wheels begin turning. In a bid to market their new business, he organizes a faux wedding photo shoot and suggests that he and Kat pose as the bride and groom. But deep down, Alfie’s feelings are very real. Confiding in Linda, he admits he’s planning to pop the question for real. Linda, ever the hopeless romantic, encourages him to follow his heart.

The big moment comes when Alfie, full of nervous excitement, gets down on one knee in their home and proposes to Kat. Her reaction is one of pure joy. After everything they’ve been through, Kat believes this might truly be their time. She says yes, and the couple immediately dives into engagement celebrations. Plans for a joint stag and hen party are made, and spirits are high as the Vic becomes the epicenter of celebration.

But just as things seem perfect, a dark twist throws everything into chaos.

While using the family computer, Kat stumbles upon something deeply disturbing — something so shocking that it instantly drowns out the joy of the engagement. Though details remain vague, the implication is clear: Kat believes she’s uncovered a sinister secret linked to Alfie. Her trust shattered, she jumps to the conclusion that he’s been hiding something terrible from her. The engagement, barely even hours old, is suddenly hanging by a thread.

The question is: is Alfie truly guilty of whatever Kat believes he’s done? Or has a terrible misunderstanding thrown a cruel wrench into their latest attempt at happiness?

The storyline poses a haunting dilemma. Can Kat and Alfie’s long-standing love survive this fresh wave of suspicion? Was Kat too quick to assume the worst, or is Alfie hiding something darker beneath his affable charm?

As the fallout unfolds, fans will be glued to their screens watching Kat’s emotional reaction, Alfie’s desperate attempts to explain himself, and the painful tension of a once-happy couple now facing another trial. With the wedding already on the horizon, their relationship hangs in the balance, once again at the mercy of secrets and heartbreak.

This dramatic plot twist is set to stir up major reactions across the Square, especially among those closest to Kat and Alfie. Will Linda continue to support Alfie, or will her faith in him falter too? And how will Phil react if he learns that Kat’s financial dependency on him contributed to the unraveling of her relationship with Alfie?

What started as a fairy-tale second chance may become just another chapter in Kat and Alfie’s troubled love story — unless the truth is revealed in time to save what little trust remains. Whether this is their final goodbye or just another dramatic pause in their decades-long romance, one thing is certain: in EastEnders, no wedding ever goes off without a hitch — and sometimes, it doesn’t go off at all.