Bubbles was always known as the most cheerful of the powerpuff trio. She found joy in the smallest of things, be it a flower or a butterfly. For the longest of times, she was convinced the world was an innately good place. It wasn't until she grew a little older that she began to realize things weren't all they appeared to be. As both her senses of self-awareness and external awareness increased, something began to feel wrong. At school, she would witness bullies hurling racial slurs at other students. This would sometimes escalate to physical violence as well, and she was powerless to do anything about it without accidentally killing the bullies due to her abnormal strength, which was the result of the infusion of chemical x in her bloodstream.
With the rapid development of the internet, Bubbles began to understand hate, death, and fear as parts of human nature. The dark, scary parts of life only became more prevalent as she grew, while the good she thought she knew stagnated and faded out. She started keeping a journal at the age of twelve detailing her personal thoughts and feelings about the world. Every time she tried to voice her concerns, she was dismissed or ridiculed.
By the age of fifteen, Bubbles had slipped so far down into a sunless void that she began trying various substances to numb the pain, but this proved a futile effort. The chemical x prevented alcohol and narcotics from affecting her brain, and she was left even more desperate than before.
"The heroin I bought from Ace didn't work. I guess I shouldn't be surprised. I've tried everything - hemp, cocaine, meth, booze; none of it's had any effect. I'm tired of this fucking place. Our politicians are liars and criminals, religious nutcases are trying to control the world, and those left who still have common sense refuse to act or say anything. What the fuck am I supposed to do? Fighting bank robbers and jewel thieves didn't make the world any safer at all. Was I brought here just to witness the end of humanity? If that's the case, why was I even born at all? Screw that. I'll end myself before it gets that far..."
At twenty years old, Bubbles was a daily self-harmer. She cut and punctured her skin with needles just to feel pain. These episodes generally centered themselves around her thighs and abdomen; places that were easily covered by her clothing. She would lock herself in her room for days on end and do nothing more than lie down while she listened intently to her black metal collection. By this time, she was the only one still living with the professor. She couldn't bear the thought of leaving him alone. At his age, he was just as susceptible to dark thoughts as she was - maybe even more so. Blossom and Buttercup almost never called unless they needed something. Throughout their childhood and adolescence, neither of them ever once thought Bubbles' change in behavior was odd. They were too focused on dating and school in addition to fighting crime to pay the idea any mind.
The day Bubbles snapped inevitably came. With the growing threat of disease and nuclear war, she'd had enough. After getting off one of her rare calls with Blossom, she wrote down her final entry.
"Blossom told me today it takes around ten minutes for a person to asphyxiate by hanging and eight to drown. I know I'm stronger than the average individual, but I'm still human..."