Is there trouble in reality TV paradise already?

Bachelor lovebirds Sean Lowe and Catherine Guidici could be the latest couple on the long list of failed relationship from the dating show, according to the new issue of Star magazine.

Despite claiming to be "bursting with excitement" over their future wedding vows, the sexy 27-year-old brunette has already set her sights on another guy!

Constantly left in the wings while Sean was on Dancing On With The Stars, it hasn't gotten any easier since he was voted off thanks to his busy schedule making TV appearances – so Catherine has been distracting herself with one of the show's pros, Julz Tocker, pals told the magazine.