Gemma Collins plasters on a smile as she promotes her fashion line amid split from James Argent

She’s nursing a broken heart amid her explosive split from boyfriend James ‘Arg’  Argent.

But Gemma Collins bravely plastered on a smile as she promoted her fashion range in a new Instagram snap shared on Thursday.

The reality star, 39, showcased her slimmed down from in a black patterned top and white skinny jeans as she defiantly posed for the picture.

Keep smiling: Gemma Collins bravely plastered on a smile as she promoted her fashion range in a new Instagram snap shared on Thursday

Gemma looked pretty in the bardot-style top with a ruffled trim and the form-fitting jeans as she continued to display her three stone weight loss. 

Upping the glam, the TOWIE favourite added a sleek palette of make-up while her blonde tresses were styled in beachy waves.

Captioning the snap, she wrote: ‘Girls, the SUMMER COLLECTION has just LANDED. enjoy love GC x.’

However, amid her cheerful post, Gemma is suffering with relationship woes as on Tuesday, she announced her split by posting break up texts on her Instagram account in which James called her a ‘hippo’ and a ‘fat f**k.’ 

All over: The reality star, 39, is nursing a broken heart amid her explosive split from boyfriend James 'Arg' Argent (pictured in 2018)

All over: The reality star, 39, is nursing a broken heart amid her explosive split from boyfriend James ‘Arg’ Argent (pictured in 2018)

Gemma has since apologised for releasing explosive text messages he had sent her, while friends have urged James, 32, to ‘sort his life out’.

In a screenshot obtained by MailOnline, the Diva On Lockdown star contacted her fellow reality star in the early hours of the morning.

She wrote: ‘I am sorry about putting the messages up, I was just so hurt you suggested an open relationship, it didn’t look like a joke when you typed it. 

‘I was so upset but I shouldn’t have put the messages up, that was anger on my part which was wrong. I am so sorry about that x.’ (sic)

Shocking: Gemma announced her split with James by posting break up texts on her Instagram account in which James called her a 'hippo' and a 'fat f**k'

Shocking: Gemma announced her split with James by posting break up texts on her Instagram account in which James called her a ‘hippo’ and a ‘fat f**k’

The GC had originally posted the fierce row that led to her breaking up with her on-off beau on social media.   

In the texts, the musician called his partner a ‘hippo’ and a ‘fat f**k’, after she suggested that he had bought another woman dinner and not her. 

The series of texts began with Gemma saying: ‘What man pays for another woman!!!’, while Arg responded by saying: ‘Insensitive.’ 

Clearly riled, the blonde said: ‘And the woman that saved your life has to pay for herself!!!’

Drama: Gemma has since apologised for releasing explosive text messages he had sent her, while friends have urged James, 32, to 'sort his life out' (pictured in 2018)

Drama: Gemma has since apologised for releasing explosive text messages he had sent her, while friends have urged James, 32, to ‘sort his life out’ (pictured in 2018)

Her next message was masked, but her now-ex responded: ‘You are supposed to be treating me you hippo.’ 

Moments later, Gemma uploaded another series of messages, where he sent her a plane emoji in reply to a picture of flight details. 

‘I’ll take a mate, I’m not booking it. You said you would be a gentleman!’, she penned, before he shockingly said: ‘YOU FAT F**K. IVE JUST LOST ANOTHER 2000’ (sic). He didn’t refer to what he had lost 2000 of. 

Meanwhile, according to The Sun, a source close to Arg allegedly claimed he needs to ‘grow up’ after seeing his dispute with Gemma.

'I am sorry about that': In a screenshot obtained by MailOnline, the Diva On Lockdown star contacts her fellow reality star in the early hours of the morning

‘I am sorry about that’: In a screenshot obtained by MailOnline, the Diva On Lockdown star contacts her fellow reality star in the early hours of the morning 

They told the publication: ‘The way James is treating Gemma right now is totally out of order.

‘Gemma stuck by James for months when he was in rehab. And when he got home she was the first one there welcoming him with open arms.

Gemma put her life on hold and now James has repaid her by behaving like this. He needs to grow up and realise he has a good thing with Gemma.’

The insider also said their highly-publicised argument could affect his comeback on TOWIE for the upcoming 10th anniversary show this autumn.  

MailOnline has contacted Arg’s representatives for further comment. 

It was reported on Monday that Gemma had decided to split with Arg after he told her he wanted to move to Spain and have an open relationship. 

Revealed: On Tuesday, the GC posted the fierce row that led to her breaking up with on-off beau James, in which he called her a 'fat f***' and a 'hippo'

Revealed: On Tuesday, the GC posted the fierce row that led to her breaking up with on-off beau James, in which he called her a ‘fat f***’ and a ‘hippo’

Hurtful: Moments later, the heartbroken star shared another series of messages

Gutted: The blonde decided to take some time off social media, citing that she was 'devastated' and 'heartbroken' by the exchange

Hurtful: Moments later, the heartbroken star shared another series of messages

An insider told The Sun: ‘Arg went to Spain and he told Gemma that he wants to go back there forever and be in an open relationship.

‘Gemma feels like she’s done everything she possibly can to help Arg but enough is enough. He said that he wants to stay in Spain for good which is worrying as he is known to have suffered relapses there in the past.

‘Gemma was devastated by the conversation and decided to end their relationship entirely – she feels like she had no choice but to walk away. 

‘It couldn’t have ended any worse; she has been in floods of tears and has even blocked Arg on social media.’ 

The duo briefly dated in 2012, before embarking on a tumultuous love story from December 2017. 

Trouble in paradise: The duo briefly dated in 2012, before embarking on a tumultuous love story from December 2017

Trouble in paradise: The duo briefly dated in 2012, before embarking on a tumultuous love story from December 2017