According to the Daily Star, the duo had a "violent scrap" after taunting each other about sleeping with a girl.
The newspaper claims that Beadle was given a "dressing down" by producers over the spat and that he was fined and banned from filming one episode.
Guarnaccio and Rebecca Walker have joined the cast as full-time flatmates for the rating hit's second run.
Watch a teaser promo for the first episode of Geordie Shore series two below:
Geordie Shore returns on January 31 on MTV.
> Geordie Shore Holly, Vicky: 'Series two will be outrageous'
> Geordie Shore cast angry with Frankie Cocozza
