James 'Arg' Argent: I was depressed - I locked myself away and ate Domino's Pizza
We watched as Lydia Bright - the woman whom he lost his virginity to aged 20 - broke his heart by declaring their four-year romance was over.
Arg unravelled. We saw him gain weight and make out-of-character crude comments (‘If I really wanted to, I could stay at hers tonight and her knickers would be around her ankles,' he said of Lydia in one drunken conversation).
Off camera, things were even worse. Now, sitting in his family home in Brentwood, Arg, 24, talks for the very first time about the depths of despair he sank into as he turned to food for comfort.
'I was the biggest and heaviest I'd ever been,' Arg tells Now's Dan Wootton.
'When I was dealing with break-ups in the past, I wouldn't want to eat because I'd feel sick. But this time I kept ordering Domino's Pizza.
'Lydia was very concerned for my health. She heard that I wasn't speaking to any of my friends and was locking myself away in my room.'
Read Dan Wootton's full interview with James 'Arg' Argent in the latest issue of Now magazine dated 19 March 2012 - out now!