The Ultimate Housemate-turned-show host said that he enjoyed seeing the model come to life in the past few days, but accepted that he "overstepped the mark" by tricking Darryn Lyons into drinking sweat during the Wizard of Oz task.
"What a week it's been for Bobby," Dowling declared in a video on the Big Brother website. "We had Bobby, then we had bad Bobby. I think I kinda liked bad Bobby more.
"Medically nothing bad can happen, but morally [the sweat prank] was really bad. I think he overstepped the mark a bit.
"I'd like to see a bit [more] of bad Bobby and nice Bobby if he kind of calms down a bit," he added. "Bobby now knowing he's been saved knowing what he's done to Darryn will spur him on to do more. I hope bad Bobby reins it in a bit."
Dowling teased that viewers can expect an "exciting week" in the house with the imminent arrival of Marco Pierre White, a "secret" eviction on Wednesday and another elimination the following Friday.
On the secret eviction, he teased: "Is one [housemate] leaving? Is two leaving? Is three leaving? Am I going in?"
Sabel had attempted to make amends with Lyons ahead of his potential eviction from the house yesterday.
Watch Brian Dowling comment on 'bad Bobby' and life in the Celebrity Big Brother house below:
> Celebrity Big Brother's Brian Dowling: 'Jedward are a reality TV dream'
> Click for Digital Spy's interview with Celebrity Big Brother evictee Sally Bercow