MAFS UK groom Adam Nightingale awkwardly lit up after staring at a co-star's wife during last night's installment.
Adam, 33, who has come under fire for his "disgusting" comments about his own spouse Polly, 28, couldn't conceal his delight when brunette beauty Lacey, 27, walked into the room.
It's been no secret to E4 viewers that careers advisor Polly and barber Adam have been having a tough time making their marriage work.
So show fans were left furious when he changed his attitude around office manager Lacey.
Taking to X, one raged: "OMD Adam’s face when Lacey walked in… that's naughty."
Another added: "Oh my god, what were Adam’s reactions when Lacy walked in? The man has no shame."
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Someone else was left upset with his comments about her wearing a bikini, writing: "Adam asking Nathan if Lacey was in a bikini on their honeymoon. TWICE."
Lacey, who has been paired with manufacturing engineer Nathan, 24, made a scene as she strutted into a cast mixer wearing a sheer black leotard-style dress.
Watching in another room, the experts immediately noticed how Adam's mood changed, saying: "Wow! Adam's reaction. Maybe Polly's onto something here."
Polly even joked around with Lacey as she told her: "Keep your f***ing hands off.
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"You are what [Adam's] asked for and I've said the only person I'm worried about is Lacey. You are his type to a T."
Lacey replied: "To be fair, my man did say that."
Polly and Adam were flown to Trentino in Italy for a winter wonderland trip after walking down the aisle.
But, in a tough moment from a recent episode, the pair spoke about their intimacy issues.
Adam admitted the stunning redhead wasn't his type, having previously said he was looking for a "petite brunnette" who resembled Megan Fox.
He further described his ideal scenario as having a mixture between Megan and Brassic actress Michelle Keegan.
Polly took the comments in her stride and later offered to give Adam a sensual massage to help bring them closer together.
During during the very awkward scenes Adam appeared to be grunting instructions at Polly.
He said: "You can go harder if you want. I thought you said this would be the best massage of my life?"
Fans were up in arms over his remarks, and one begged: "Polly, just go home hon, and give up the ghost. Adam is vile."
Another said: "Can’t stand Adam. Absolutely vile. She’s gorgeous and deserves better."
Mafs couples that have stood the test of time
Loved-up Tayah Victoria and Adam Aveling of series six fame had the first Mafs baby.
The pair couldn't keep their hands off each other on the programme and quickly found their feet in the outside world, moving into Adam's Doncaster home.
Just 18 months after meeting, the couple welcomed their daughter Beau.
Season five couple Michelle Walder and Owen Jenkins also managed to make their marriage work away from the cameras and had their first child in December.
Teacher Michelle, 29, has no regrets about taking part in the experiment. She told us: “I just feel very lucky and thankful that it has worked out - and excited for everything to come.”
Michelle and Owen were both sick of dating apps when they applied in 2019.
Owen recalled: “I had been out for some drinks with a friend after work.
"While he was out for a cigarette I was scrolling on Instagram waiting for him to come back in.
“The MAFS advert was the last thing I saw, and I joked, ‘Wouldn’t it be funny if I signed up?’
“A few beers later when I was back at home I sent in the application, and the rest is history.”
Another couple to make Mafs UK history is Zoe Clifton and Jenna Robinson.
Despite a slight rocky start, where they clashed over Jenna's vegan lifestyle, the show's first same sex pairing are still going strong.
They even have a successful podcast together called Life With a Pod.
Jenna shed light on being involved in the show earlier this year when she told us: "We're not legally married, and I never felt like we were. I definitely feel the process makes you take the relationship a lot more seriously and having the help of the experts… if you can survive that process it sets a firm foundation for a long-lasting relationship."
One more reacted: "Adam wasn't worth that massage .. he definitely seems like an a*****e" as a fourth typed: "Adam was such a d**k with that massage".
Despite the five star luxury trip, Adam admitted in a candid confessional that it was "a bit of a frustrating honeymoon" and said: "Something is missing."
And Polly told the cameras: "I'm frustrated the way Adam has been, given the way we were on our wedding night.
"It feels a bit rubbish that he hasn't given me a definitive answer."
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Welling up with tears, she added: "I'm going to get upset. I definitely think it's bringing up insecurities because of previous relationships where I've been kind of torn down quite a lot.
"And I'm then going into this with a very good-looking man who I do fancy. Today was breaking point. But I did find it really difficult."