She previously claimed that Arg's diet for Sink Or Swim had left him with such bad halitosis that she was physically sick.

Yet Gemma Collins was supportive of James Argent's bid to slim down as she gave him a motivational speech on Tuesday's episode of the Channel 4 show.

The Diva Forever star, 38, addressed her beau's weight gain as she claimed it had ruined their sex life and she had feared Arg, 31, had developed diabetes.

Support: Gemma Collins was supportive of James Argent's bid to slim down as she gave him a motivational speech on Tuesday's episode of Sink Or Swim

Gemma was seen telling Arg: 'I can notice the difference in you. I can get my arms around you now when I cuddle you in bed.

'And when you love someone it's not about their size or whatever, but we can't be as we used to be in the bedroom. We can't, no offence.'

Gemma added that his weight had left him convinced that he was ill, as he was displaying symptoms of having developed Type 2 diabetes.

Slimming: The Diva Forever star, 38, addressed her beau's weight gain as she claimed it had ruined their sex life and she had feared Arg, 31, had developed diabetes

Cuddly: Gemma was seen telling Arg, 'I can notice the difference in you. I can get my arms around you now when I cuddle you in bed'

'We did go through a stage where you was urinating a lot through the night and we was concerned Type 2 had set in', she revealed.

'So many people are nasty about your weight gain and then obviously people saying you've got really fat because you're with the GC, and it was like I was taking the stick as well.

'I'm here to support you with it and I'm just so pleased you're taking it seriously. And it's very attractive James. I fancy you much more.'

Concerned: Gemma added that his weight had left him convinced that he was ill, as he was displaying symptoms of having developed Type 2 diabetes

Back to his best: Gemma later added: 'To be honest he's like the Arg I first met. He's active again, I can see his personality coming back'

Gemma later added: 'To be honest he's like the Arg I first met. He's active again, I can see his personality coming back.

'He's got energy, he's having a laugh again. He just seems so determined, I love it.'

On the Channel 4 show, Arg - who has since kick-started his fitness journey - is joined by a host of fellow celebrities, including Wes Nelson, Linford Christie, Georgia Kousoulou and Simon Webbe as they train to swim the English Channel in aid of Stand Up To Cancer.

Earlier this year, he was advised to lose 10 stone and 17 inches off his waist after admitting he is 'on death row'.

Training: Arg - who has since kick-started his fitness journey - is joined by a host of fellow celebrities, including Wes Nelson and Simon Webbe as they train to swim the English Channel

Although Gemma was full of praise for Arg's new look, she previously confessed that the diet he had gone on to slim down had left her throwing up.

The TOWIE star said the toilet seat had to be put in the bin when she 'obliterated' the bathroom after getting a whiff of his 'dog breath'.

Gemma discussed James' new healthy lifestyle and said although taking part in Sink or Swim has helped him lose 42lbs, the meals he has been eating have left him with extreme halitosis.

Recalling the incident on her BBC Sounds podcast, the GC said: 'It was like a scene from 'Alien'. His breath smelt so bad I was actually sick.

'I woke up and he breathed and said good morning and I started to retch. Then I spewed all over his bedroom at 6am.

'I retched from the bathroom all along the landing. I obliterated the bathroom. We had to take the toilet seat off.'

No holding back: Although Gemma was full of praise for Arg's new look, she previously confessed that the diet he had gone on to slim down had left her throwing up

Meanwhile, James shared a rare throwback snap from his childhood on Tuesday as he admitted his weight gain had caused him to lose his confidence.

He shared: 'When I was a child there was nothing I loved more then getting in the sea or the swimming pool but as I got older I completely lost my confidence. I’ve been up & down in weight since my teens.

'At the start of this epic challenge I was the heaviest & unfittest I’ve ever been. I hadn’t done a bit of exercise for months & I really struggled at the beginning.

'I’ve managed to stick at it & turn it around through #hardwork #dedication #commitment [sic]'.