Although reports have suggested the contrary, Bobbi Kristina didn't walk off the set of Tyler Perry's "For Better or Worse" because she's grieving the recent death of her mother, Whitney Houston. The 19-year-old has simply completed her duties, a source close to Tyler Perry tells CNN. The prolific filmmaker also said as much on his website, explaining that "there is no way [Bobbi Kristina] could have walked off the set because we have finished taping for the season." Perry went on to describe how he came to write Bobbi Kristina into his TBS show following Houston's death, because the teen had mentioned a desire to act. "I thought that there would be no better way for me to help her move through the grieving than by giving her something to focus on," he wrote. "The one thing that I learned after my mother's death is that you have to keep busy and you have to be around people who you can trust, so that when you do grieve you can do it in the safety and privacy of people that care." Bobbi Kristina did have some tough days, Perry said, "not because of any acting or job-related issues but because of the fact that she had just lost her mother." Having seen the death of his own mom, Perry added that he understands what the teen is going through. "So yes she was grieving, but grief aside, she managed to finish her obligation and did a great job at the same time," he said of the budding entertainer. "So please... PLEASE LEAVE THIS BABY ALONE!!!! AND SHE IS A BABY!!! Please stop the lies and give this child some room to breathe and grieve."