Jesy Nelson reveals SHE was the one who ended her relationship with fiancé Zion Foster and says their twins' SMA battle 'tore them apart' after he admitted he was 'just surviving' amid their diagnosis

Jesy Nelson has revealed she was the one who decided to end her relationship with her fiancé Zion Foster, after they were 'torn apart' by their twins' health battle.

The singer, 34, revealed in January her now one-year-old twins, Ocean and Story, had been diagnosed with Spinal Muscular Atrophy (SMA) Type 1, a rare muscle-wasting condition. 

Just weeks after sharing her diagnosis, it emerged that Jesy and Zion had ended their four-year relationship, and now the star has shed light on her decision to split.

The star has filmed a new episode of her Prime Video series on the aftermath of her twins' diagnosis, and in it she admitted she and Zion were 'clashing' over how to cope with their babies' diagnosis.

The documentary, which will air later this year, showed the moment both Zion and Jesy learned of their twins' diagnosis.

The rapper then said: 'I am not equipped to deal with this, I am out of my depth, emotionally physically and mentally. At the moment I am just surviving.'

In the episode, which was obtained by The Mirror, Jesy then spoke about their decision to split up, saying: 'It is a very traumatic thing we have both been through.

'I think it's quite inevitable for things like this to happen as a couple. Like, I don't think it's like a shock that we've broken up, because you'll either be a team or it can tear you apart, and unfortunately, I feel like that's what it's done to Zi and I.

'But you know, we still get on. There's no, there's no bad feeling. My main priority is them, so like, I just want to be the best mum for them. 

'I want to have the best energy, and I want to be positive, and the house was not like that when we were together. 

'Obviously, because we were both dealing with this situation completely differently, and together we were just clashing. So I decided we would be better off apart.'

Last week, Jesy celebrated a major milestone as she announced SMA will now be debated in Parliament.

The singer has campaigned tirelessly for the NHS to expand its screening to check for the disease following her own experience with her daughters. 

Jesy shared the news that the UK Government has confirmed that the petition to add SMA to newborn screening in England will now be debated in Parliament on June 22.

The news comes following calls demanding the health secretary to overrule the committee's guidance and make effective treatment more accessible on the NHS.

Last month, Jesy shared her joy as the NHS announced they would roll out 'heel prick' testing on newborns for SMA.

Despite the UK's National Screening Committee rejecting calls to introduce checks for another muscular disease in January, Wes Streeting announced plans for more than 400,000 babies to be screened for the condition from October 2026.

Celebrating the news, Jesy took to her Instagram and wrote: 'A big step forward for SMA, ISE have announced to start screening for SMA in England will now begin in October 2026. I am so proud as this is a major milestone for the SMA community.' 

The pilot will see an estimated 400,000 babies tested in England. 

The NHS currently carries out 'heel prick' tests on babies at around five-days-old to check for just ten treatable conditions, including cystic fibrosis. 

In a letter addressed to the singer and Giles Lomax, chief executive of SMA UK, Streeting said: 'At our meeting I committed to seeing whether the in-service evaluation of SMA screening could be implemented faster and cover a wider geographical area. 

'I am pleased to confirm that [screening] will now start in October this year rather than January 2027 as previously planned.' 

Despite her daughters' devastating prognosis they may not live beyond the age of two, Jesy in March explained that despite the tragic news, she has decided to keep filming her Prime Video series as she fights to 'make a change'. 

In a Q&A, she said: 'I just hope people continue to watch the next part of the journey. When the girls got their diagnosis, we decided that we wanted to continue filming.

'As hard as it was, we were like, "You know what? There's a reason you guys are here, and we've got to make the best out of this situation".'

Jesy previously told the Daily Mail the medical procedures her babies must endure each day leave her feeling like she's hurting them as they cry and scream.

She described caring for the twins as an emotional rollercoaster, with some days being 'really f***ing s***' and others slightly lighter.  

Jesy and ex-partner Zion never expected to be caring for their babies in such a way, and Jesy says having to provide for their medical needs is a daily struggle.

She said: 'Every day is so full-on - I can speak about it, but I'll never be able to explain how intense it is until you see it.'

Speaking to Jamie Laing on his Great Company podcast, Jesy said she is hopeful that her babies will defy the odds now that they are receiving treatment and go on to have a longer life expectancy.

She explained: 'So spinal muscular atrophy is a muscular wasting disease, so they don't have a gene that we all have in our body.

'Their muscles are now deteriorating and wasting away, and if you don't get them treatment in time, eventually the muscles will all just die, which then affects the breathing, the swallowing, everything. And they will die before the age of two.

'It's not okay, but it is what it is, and I just have to accept it, and now just try and make the best out of this situation... And my girls are the strongest, most resilient babies and I really believe that they are going to defy all the odds.'

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