In a world where love is blind but money is not, five couples decided to bare their financial souls by keeping separate money diaries for a week, then revealing them to each other. The results were, predictably, a mix of shock, denial, and the occasional 'I had no idea you spent that much on a watch.' But wait, they didn't even buy a watch - one couple spent £5,800 on a breast augmentation, Botox, and other beauty treatments in a single week. But we're getting ahead of ourselves.

Meet Rachel, 38, an NHS worker earning £27,000 a year, and Kojo, 41, a school caretaker earning £32,000. They live in a three-bedroom home they bought in 2024 for £325,000, with their son Marcus, Rachel's 13-year-old daughter Amanda, and Rachel's 17-year-old son Miles, who splits time between them and Rachel's ex. The couple splits their £1,750 monthly mortgage and bills, each contributing £500 to a joint account for shared expenses while keeping the rest separate. Rachel also receives £150 a week in child maintenance from her ex. She's 'highly strung' about money after a divorce that left her with 'nothing.' Kojo, meanwhile, treats her kids as his own, which is sweet, but he might want to brace himself for what's coming.

Rachel's week: Monday, she pays £8.50 to park at work (a 'complete joke'), microdoses Mounjaro (a weight-loss drug, £220 for a new pen), and pays £60 for carpooling for the kids. Tuesday, a £50 gym set, £8.50 parking, and £7.20 on fruit and a wrap. Wednesday, £8.50 parking, £11.50 on wine and chicken wings with a friend, £11.23 on Asda snacks, and £12.50 on an eyelash-perming set. Thursday is 'self-care morning': £350 for a polynucleotide injection, £150 for Botox, and £175 for filler in her cheeks and chin - £675 total, because feeling great is priceless, apparently. Friday, a £65.32 Nando's treat for the kids (it used to be cheap!). Saturday, a safari park trip, £130 for four, split with Kojo, so £65 from Rachel. Sunday, £45 on face serums and £12 on a phone case for Amanda. Total: £288.50 + £65.70 + £43.73 + £675 + £65.32 + £65 + £57 = £1,260.25 that week alone. But wait, there's more: she's also got a £5,000 breast augmentation from a recent trip to Turkey, paid for with her savings, and a £2,500 debt on her personal Amex, which she pays off the minimum on each month. Kojo is shocked: 'I had no idea how expensive all this was. We could put some of that money towards a kitchen extension.' Rachel counters that a kitchen extension is out of budget anyway, and her treats are 'paramount for her mental health.' She also points out his £25-a-week smoking habit, which he hides from the family, and questions the logic of buying a £189 health watch while smoking. Kojo admits he's ashamed and wants to quit, but also notes, 'A £1,260 spend per week from Rachel is a lot.' He sees where they can 'plug a few holes,' and maybe tell Rachel she's beautiful more often, so she doesn't need all that beauty spending. But he won't control her choices. How noble.

Next up, Caitlin, 34, an accountant earning £94,000, and Jasper, 34, a tax adviser earning £103,000. They met on Tinder 10 years ago, married in 2024, and are expecting their first child via IVF, due in six months. They live in a five-bed Victorian house they're renovating (cost: £20,000, split, with Jasper's bonus), with their six-year-old chihuahua Beanie ('a diva'). They pay £3,500 into a joint pot monthly for bills, holidays, house expenses, and two cars, but keep separate accounts.

Caitlin's week: Monday, £19.20 on a sustainable baby outfit and £28 on cushion covers. Tuesday, £41.72 for her half of a Tesco shop, 75p milk, and £2.20 dog treat. Wednesday, £295 for wood for skirting boards and £25 for a sander from Argos - because Jasper didn't want to shell out from the joint account, and she's pregnant but still doing DIY. Thursday, £300 for her half of a three-night stay at a 'bougie' hotel in London. Friday, £32 petrol, £5.99 lunch (egg sandwich, Diet Coke, Quavers), £4.34 for ginger and Thai curry paste. Saturday, £0 (Jasper paid for the pub). Sunday, £0, relaxing. Total: £47.20 + £44.67 + £320 + £300 + £42.33 = £754.20. But she's an accountant, so she loves this. Jasper's week: Monday, £27 for parking, petrol, and a chicken and bacon baguette. Tuesday, £27 for the same but with a duck wrap, plus £43 for a garden strimmer. Wednesday, £27 again, plus £44 on picture frames. Thursday, £27, plus £300 for his half of the hotel, and £75 on football tickets (Caitlin hates football, so she's not coming). Friday, £13.99 for a bento box, edamame, and Diet Coke, and £1.27 for razors (the train is expensed). Saturday, £32.54 for beers and Diet Cokes at the pub, and £7 for calamari. Sunday, a 'late-night clothes splurge' of £354.32 from Zara and Asos, which he didn't tell Caitlin about but justifies for an upcoming holiday. Total: £27 + £70 + £71 + £402 + £15.26 + £39.54 + £354.32 = £979.12. Caitlin is surprised at Jasper's £300+ online shopping: '£300 in one online shop is insane to me. He could go on Vinted.' Jasper is unrepentant: 'I work hard for my money, so I don't care.' They bicker over money, like during IVF, where they spent £8,000 on fertility treatments in Portugal, but Jasper didn't like Caitlin spending an extra £400 a month on supplements. She got pregnant, so who's to say they didn't work? Now it's the renovation causing friction, like when Caitlin wanted a £500 vintage coffee table and Jasper said no. She bought the wood and sander herself, but he's since helped with the sanding, and admits it looks nice.

Then there's Martha, 64, and Gary, 70, together five years, with an 11-year-old whippet named Peggy (formerly Gary's son's dog). Gary is a semi-retired electrician earning about £45,000 annually from part-time work and pension, while Martha is retired, living off her pension and her late husband Dave's pension of £2,200 per month. They top up a shared account with £350 a week for household costs, groceries, and alcohol, keeping the rest separate. Their house was bought by Martha in 2024 for £425,000. Monday, Martha drives to work three days a week for a big electric company, but they cover parking, so she gets...