Jesy Nelson and Fiance Zion Foster Split After Their Twins’ Shock Diagnosis – But Exes Remain ‘United as Co-Parents’

Jesy Nelson and Zion Foster’s Relationship Ends Amid Twins’ SMA Diagnosis

Jesy Nelson, the former Little Mix star, and her fiancé Zion Foster have announced their split after four years together, following the devastating diagnosis of their twin daughters with Spinal Muscular Atrophy (SMA) Type 1. The news has shocked fans and the public alike, but the couple remains committed to co-parenting their children and supporting each other through this difficult time.

Jesy, 34, and Zion, 26, welcomed their identical twin girls, Ocean Jade and Story Monroe, in May 2025. The pregnancy was high-risk due to a rare condition called twin-to-twin transfusion syndrome (TTTS), which required Jesy to undergo in-utero surgery and months of medical supervision. Shortly after birth, the twins were diagnosed with SMA Type 1, the most severe form of this rare genetic disease that affects muscle strength and movement.

Understanding SMA and Its Impact on Jesy Nelson’s Family

Spinal Muscular Atrophy is a genetic disorder that causes progressive muscle weakness due to the loss of motor neurons in the spinal cord. SMA Type 1, the form affecting Jesy’s daughters, is particularly severe and can lead to serious breathing and swallowing difficulties. Without early intervention, babies with SMA Type 1 often face a life expectancy of just two years.

Jesy and Zion were informed that their daughters might never walk or regain neck strength, and they will likely require wheelchairs. Despite this grim prognosis, Jesy remains hopeful and determined, stating that many children with SMA have defied expectations and achieved incredible milestones.

The twins are currently receiving treatment at Great Ormond Street Hospital in London, including a one-off gene therapy infusion approved by the NHS. Jesy is actively campaigning to have SMA added to the NHS newborn heel-prick test, which currently screens for ten other conditions. Early detection is critical in managing SMA and improving outcomes for affected children.

Jesy Nelson and Zion Foster: United as Co-Parents Despite Split

Although Jesy and Zion have ended their romantic relationship, sources close to the couple confirm they remain friends and are fully focused on their daughters’ well-being. The couple’s priority is to provide a loving and supportive environment for Ocean Jade and Story Monroe as they face the challenges of SMA.

Zion has shown unwavering support for Jesy and their children, even penning a heartfelt poem dedicated to their “two little warrior girls.” Jesy, meanwhile, has spoken openly about the emotional toll of the diagnosis and the pressures of balancing motherhood with advocacy work.

The couple’s split highlights the strain that a serious health diagnosis can place on relationships. Experts note that parents of disabled children often experience increased stress, which can lead to separation. However, Jesy and Zion’s commitment to co-parenting exemplifies how families can adapt and prioritize their children’s needs above all else.

Jesy Nelson’s Campaign to Raise Awareness of SMA

Since her daughters’ diagnosis, Jesy Nelson has become a vocal advocate for SMA awareness. She has launched a petition urging the UK government to include SMA in the newborn screening program. This simple blood test at birth could identify affected babies early, allowing for timely treatment that can significantly improve quality of life.

Jesy’s campaign has garnered widespread support from fans and the public, who have praised her courage in sharing her family’s story. She appeared on ITV’s This Morning to discuss the twins’ condition and the importance of early detection. Jesy’s efforts aim to prevent other families from facing similar heartbreak due to delayed diagnosis.

Despite the challenges, Jesy remains optimistic about her daughters’ future. She believes that with the right support and medical advances, Ocean Jade and Story Monroe can defy the odds and achieve remarkable things.

Conclusion

Jesy Nelson and Zion Foster’s split following their twins’ SMA diagnosis is a poignant reminder of the challenges families face when confronted with life-altering news. Yet, their united approach to co-parenting and Jesy’s passionate advocacy for SMA awareness demonstrate resilience and hope. If you want to support Jesy’s campaign or learn more about SMA, consider signing her petition and spreading awareness. Together, we can help ensure early diagnosis and better futures for children affected by this rare condition.