Copyright dailystar

Married at First Sight UK enthusiasts are bracing themselves for one of the programme's most dramatic highlights : partner swap week. The bombshell twist, kicking off in tonight's instalment (October 28), will witness the brides and grooms split up and paired with different partners. The shake-up aims to examine how much faith the couples have in their other halves , whilst also revealing what might be lacking in their existing relationships. Davide Anica and Keye Luke have become beloved viewer favourites and have flourished throughout their journey in the experiment. Relationship guru Paul C Brunson even praised the pair for their dedication during the programme's most recent commitment ceremony, which broadcast last night (October 27). "From my time in this experiment I believe that you two affirm each other better than anyone I've ever seen," he gushed to the duo, bringing Keye to tears. Predictably, the couple chose to remain in the experiment and vowed to have "hordes of irritating children" together. Despite the pair establishing strong foundations, a bombshell at the beginning of couple swap week threatens to unsettle Davide, reports OK! In tonight's episode, the groom has a heart-to-heart with bride Leigh Harris, who is partnered with Leah Tyrer. Whilst discussing their respective partners' new matches, Davide reveals that Keye will be paired with newcomer John Shepherd. Meanwhile, Leigh reveals that her bride has been paired with Leisha Lightbody, prompting a worried response from Davide following earlier tensions caused by Leigh's fears that her bride fancied Leisha. "Interesting," Davide remarks after hearing about the couple swap, before questioning Leigh: "How do you feel about that?" "I just think where there's been little situation situations with Leah before and it's Leisha," Leigh begins as an anxious Davide looks on. "It'll prove to me that my doubts or my worries don't need to be there, or it's going to prove to me that I am right and there is a problem there." Whether Leigh's fears are justified remains to be seen, though a subsequent scene reveals Leah confessing to cameras that she'd wanted to be matched with Leisha. "I was hoping that I was going to get Leisha in the partner swap," she confesses. "Just because I think she's up for more things, she's a bit more spontaneous... she wants fun. And I want fun, so I think we'll have fun." Married at First Sight UK continues tonight at 9pm on E4 or tune in via Channel 4 On Demand