I don't believe this is true. They simply had a heated discussion in the garage area after the race. Over and done with. I know Jeff has more points than Jerry which could be attributed to Jeff's driving ability, but it seems like Jerry is having more success with race setups and qualifying setups. It's no secret that Jeff's team has struggled with personnel changes.
Chemistry takes time to build.
He visited Buck Baker's driving school in 1990 to take his first laps in a stock car. He met Hugh Connerty, owner of a fledgling race team, during his second day at the school. Connerty liked what he saw and arranged for Gordon to drive his car late in the 1990 season. That led to a deal with Bill Davis for the 1991 season. And the rest is history.