Lady GaGa's ex-boyfriend Lc Carl dropped 40 pounds during their split
Startraks Photo/Rex Features
The bartender and SiriusXM DJ writes in his memoir The Drunk Diet: How I Lost 40 Pounds... Wasted about how his increasing size caused the performer to dump him.
The 31-year-old - who dated GaGa on and off between 2005 and 2010 - claims that he was "living somewhere between drunk and hungover at all times".
He reveals that when GaGa's album The Fame took off, with songs like 'LoveGame' and 'Poker Face' reportedly written about Carl, he became motivated to exercise.
He added: "I was fat and miserable, but her career was blossoming. I couldn't even watch reruns of Seinfeld without seeing her singing in her underwear."
"I was happy for her, of course, but I didn't need my ex shoved down my throat. I basically had no choice but to run. And run I did."
He continued: "I used to get more women when I was broke, flabby and completely wasted all the time - but those women were sloppy 22-year-olds, the kind of women who messed up my sheets and asked for cab fare in the morning."
> Lady GaGa has "goosebumps" after seeing 'Born This Way' tour stage
> Lady GaGa, Oprah Winfrey launch anti-bullying Born This Way foundation
Watch Lady GaGa's 'Love! Game' m usic video below: