Jesy Nelson's boyfriend accuses her ex Zion Foster of not checking in on their twin daughters after he hit back at 'deadbeat dad' jibes

Jesy Nelson's boyfriend has accused the father of her children of 'not checking in' on their daughters after the singer hit back at 'deadbeat dad' claims.

Zion Foster split from Jesy, 35, earlier this year, shortly after she announced their twins had been diagnosed with Spinal Muscular Atrophy Type 1 (SMA).

Zion has now released a single where he said his 'heart is bleeding' in a post which was captioned 'first and last time saying my peace [sic].' 

He raps that he has to 'pick my battles because the system aint going to help me through this fight' and that he is 'hurt to the core' but is blocking out 'all this noise on social media'.

However, Jesy's boyfriend Ben Davies rejected Zion's suggestion that he doesn't have access to their girls, Ocean and Story, 17 months, and took to the comments section of Zion's post to share his opinion.

Underneath the post, which included a photo of Zion in hospital with his daughters, Ben wrote: 'Victim [laughing emojis] fully lost the plot this kid. 

'No one's stopped you seeing the girls, you just couldn't be a***d or too busy writing poems making money off them before anyone pipes up, ask him to send a screen shot of the last messages checking in on his girls... I'll wait.....'

In the song, Zion included the lyrics: 'The real truth aint going to hit the surface, cause I aint going to put my babies through that, got the receipts in my phone and notepad, why would I save myself and put my girls through that pain as well.'

He continued by adding that social media is 'not real' and 'I'm working everyday to put food on them plates'.

Elsewhere on the track, the father-of-two added that he has 'called a lawyer' and is 'mad at the way he's treated and his hearts bleeding'. 

He sings in the chorus: 'Life goes on, we keep on moving, life goes on, we keep on cruising. Tore my heart and I'm a man and put my logic first, you know I'm coming first.'

The Daily Mail contacted Zion Foster's representative for comment.  

The new track comes days after Zion hit back at claims he's a 'deadbeat dad' just hours after hard-launching his new girlfriend.

It was then revealed that the rapper is dating a woman known only as Sav, and the pair had even gotten matching tattoos – after it emerged that Jesy is in a new relationship.

However, after going Instagram official with a video of him looking loved up with his new girl, Zion received backlash from a follower in response to his caption which read: 'It’s crazy how so many people are triggered seeing me happy.'

One person commented: 'Nothing wrong with being happy, more about being a deadbeat dad that triggers people hun x.'

The father-of-two was quick to snap back at the naysayer – and share the exchange on his stories – with Zion fuming: 'You've seen 15 seconds of my life and decided what kind of father I am. you don't know my story.'

Zion was also forced to shut down a comment accusing him of abandoning his daughters when he discovered their condition.

The message said: 'How can you be happy when you have two beautiful daughters you don't see or care for!!! Like soon as you discovered their illness you were off!! Sorry but you don't deserve happiness.'

To which he sharply replied: 'My daughters aren't a talking point.'

However, amid the negative comments, Zion was supported by several of his followers, who slammed haters for judging him without knowing the truth.

They penned: 'You've both parted ways both got new partners and both are still parents....who cares? Some people judge way too much.'

'Why can’t people just accept that they’ve both moved on and they can both still parent the girls and have happy lives.'

'It’s actually mad that you think you know his life!! You have no idea what he does or doesn’t do for them babies. People are allowed to move on and find their happiness.'

It comes after it was revealed that Zion had found love again, months after splitting from the Little Mix star.

He had flown to Portugal for a holiday in August, and while originally it was thought he'd made the trip solo, he was joined by Sav during the getaway.

He appeared to 'soft launch' the relationship by captioning his post '+1', and he and Sav have since changed their profile pictures to solo shots from the same location.

Last month, Jesy unveiled her new relationship to the showbiz world by bringing her boyfriend Ben Davies as her date to the National Television Awards.

Jesy previously 'hard launched' her new relationship with Ben by sharing the first photo of him on her Instagram page at the end of August.