Singer Confirms Split Following Health Crisis
Pop artist Jesy Nelson and former fiancé Zion Foster have ended their four-year relationship months after announcing their engagement. The separation follows the couple’s shared trauma of their twin daughters being diagnosed with Spinal Muscular Atrophy (SMA) Type 1, a rare genetic condition affecting muscle development.
Prioritizing Family Through Health Challenges
In a recent public statement, Nelson explained: “We’ve endured an incredibly traumatic experience where our daughters became our absolute priority. Creating a positive, happy environment requires all our energy – circumstances understandably shifted our relationship dynamic.”
The 34-year-old former Little Mix member emphasized their continued cooperation: “We maintain friendship and complete unity in co-parenting. Our focus remains on being the best possible parents during this challenging time.”
Complicated Pregnancy Preceded Diagnosis
The twins’ health complications began during Nelson’s high-risk pregnancy, where doctors identified monochorionic diamniotic (MCDA) twin development and twin-to-twin transfusion syndrome (TTTS). Though born healthy, both infants received their SMA Type 1 diagnosis six months post-birth – a condition causing progressive muscle wasting that currently lacks universal newborn screening in the UK.
Focus on Day-to-Day Resilience
“I’m embracing each day as it comes,” Nelson shared regarding her daughters’ condition. “Looking too far ahead becomes overwhelming when our priority is maintaining their happiness and wellbeing. Their current positive progress gives me strength.”
Documentary Captures Personal Journey
The separation coincides with the upcoming release of Nelson’s Prime Video documentary series, which chronicles her pregnancy journey and former relationship with Foster. Footage shows the couple’s previous closeness, with Nelson having described the R&B singer as her “best friend” shortly before their separation.
Medical professionals emphasize that SMA Type 1 requires specialized care, with recent healthcare initiatives advocating for accessible £5 newborn blood tests to enable earlier intervention nationwide.

