Not really relevant to his initial dropping out of the race and the main reason why. But, yes, he did reenter the race. By that time though he lost the mojo(political momentum) at the same time as Bill Clinton was gaining it as the “change” candidate. He lost some support by quitting. It didn’t help also that his VP pick appeared ill prepared for the debate. His dismal showing sunk whatever small chance Perot had. Him quitting the race and then jumping back in also gave fodder for his political foes and the media who used it as a cudgel to label him as indecisive, compulsive, and unreliable.That's part of the story but not all of it. You left out the part where Perot reentered the race.
I actually was hoping Perot would win and was pulling for Stockdale in the debate. But both their performances down the stretch of the election season turned out to be a bridge too far.