Peaky Blinders fans furious after Tommy betrays Lizzie in penultimate episode

Peaky Blinders star Natasha O'Keefe as Lizzie Shelby
(Image credit: BBC)

Peaky Blinders fans are furious with Tommy Shelby (Cillian Murphy) after he betrayed his wife Lizzie (Natasha O'Keefe) in very upsetting scenes.

So far Peaky Blinders season 6 has been quite the rollercoaster, from the touching tribute to Aunt Polly (Helen McCrory) to the devastating death of Ruby Shelby, and fans are convinced Tommy has crossed a terrible line and that his marriage is now irreparable. 

Throughout the years, Tommy and Lizzie have often argued, especially when it comes to his infidelity. It's clear he's still very much in love with his ex-wife and hasn't treated Lizzie well, but in recent scenes it appears he's sunk to a new low.

Following season 5's shocking failed assassination attempt, things remain tense with fascist politician Oswald Mosley (Sam Claflin) and his partner Diana Mitford (Amber Anderson) on the scene, and Tommy has betrayed Lizzie by sleeping with Diana.

Unsurprisingly, Diana has weaponized this encounter, choosing to tell Lizzie about it herself knowing she was already in a very dark place following the death of her daughter Ruby.

Delivering the news, Diana told Lizzie: "Elizabeth, you are a very lucky woman to have each day what I’ve only sampled once", causing her to make a swift exit due to the humiliation.

Fans are furious with Tommy's behaviour, convinced he's finally gone off the deep end after a series of horrible blows including Ruby's death, Michael's betrayal, and news that his own health is declining.

Especially given Diana's connection to Mosley, who the Shelbys have been trying to take down for a while, it seems like Tommy and Lizzie's marriage might finally be over, and he later even told Lizzie that he regrets marrying her and that he is "cursed".

With Tommy continuing to act out and isolate himself, there's also a chance that the series' protagonist could die in the final episode. Creator Steven Knight is no stranger to shocking twists and heartache, so is he willing to kill off Tommy Shelby?

Right now that's all speculation, but considering he's adding to his list of enemies, including his own wife, there's a chance that the Peaky gang leader's days are numbered. We'll have to wait and see...

The Peaky Blinders finale airs on BBC1 on Sunday April 3 at 9pm. The final episode will be feature-length and episodes are available on BBC iPlayer.

Lucy Buglass
Senior Staff Writer

Lucy joined the team in 2021, where she writes series guides for must-watch programmes, reviews and the latest TV news. Now she works for our sister site TechRadar in the same role. Originally from Northumberland, she graduated from Oxford Brookes University with a degree in Film Studies and moved to London to begin a career writing about entertainment.

She is a Rotten Tomatoes approved film critic and has a huge passion for cinema. She especially loves horror, thriller and anything crime-related. Her favourite TV programmes include Inside No 9, American Horror Story, Stranger Things and Black Mirror but she is also partial to a quiz show or a bit of Say Yes to the Dress