Jesy Nelson's Former Fiancé Zion Foster Speaks Out Over Claims He Left Their Kids

Jesy Nelson's former fiancé Zion Foster has responded to accusations that he has walked away from their twin daughters.

Earlier this year, the former couple's daughters, Ocean Jade and Story Monroe, were diagnosed with severe Spinal Muscular Atrophy (SMA), a rare condition that causes progressive muscle weakness and can become life threatening without treatment.

Foster previously admitted he felt overwhelmed after receiving the devastating news. However, on Wednesday he addressed the criticism on social media, explaining what he meant and defending his role as a father.

"I've stayed quiet because my focus has always been where it should be, on my children," he wrote on Instagram.

"Reading some of the comments over the last few days has been incredibly painful because they simply aren't true. When I said I was 'out of my depth' I wasn't saying I was walking away from my children or abandoning my responsibilities as a father."

Foster shared the statement before the release of Nelson's new television documentary, Jesy Nelson: Life Changing.

The hour long documentary, which begins streaming on Prime Video on 17 July, follows the former Little Mix star after the diagnosis and documents her efforts to raise awareness of SMA.

While Foster has largely remained out of the public eye in recent months, his latest Instagram post stressed that he is still fully committed to his daughters, who were born prematurely in May 2025.

"Being out of my depth meant I was learning," the musician continued. "It meant I was trying to understand. I never meant I didn't love my daughters or that I wasn't going to be there for them. I love my girls more than words could ever express. They are my world and always will be."

In the same statement, Foster also alleged that it was Nelson who decided to end their relationship earlier this year.

Since their split, Foster said he has continued attending hospital appointments, learning as much as he can about SMA and supporting his daughters in "every way" he can after what he described as the "heartbreaking" diagnosis.

"Please don't mistake vulnerability for abandonment," he urged. "Asking for help or admitting you don't have all the answers doesn't make someone a (bad) father. It makes them human."

Nelson has since become a passionate advocate for greater awareness of SMA following her daughters' diagnosis.

While promoting the documentary, the 35 year old singer promised she would keep campaigning for improved SMA screening for newborns.

"This is truly the most heartbreaking series I've ever had to make, and I urge you all to watch it," Nelson wrote on Instagram this week.

"No future babies born with SMA should have to live their lives like this, i am so grateful for all of your continued support and I will keep on shouting about this until change is made."