It's only been one day since Zayn Malik quit One Direction, but fan theories as to why the fan-favorite pop star chose to part ways the group that made him famous are everywhere on the Internet.
Zayn loyalists believe his management's explanation that Malik quit due to stress. Others blame Zayn's fiancee, Perrie Edwards, claiming that she convinced him to call it quits so that he could focus on their relationship.
Now, a new theory is emerging that's sure to enrage the millions of Directioners who counted Zayn as their fave.
Radar Online is reporting that sources connected to the band have revealed that Zayn was actually fired as a result of his escalating bad behavior:
"Zayn's alcohol and drug use became a huge problem," one insider claims, adding that Malik was eventually given an ultimatum: sober up, or hit the road.
"He chose not to get clean and that is when they parted ways," the source claims. "They gave him every opportunity to clean up his act, but he just couldn't do it."
Malik's alleged drug use first came under scrutiny last year when video of Zayn and Louis Tomlinson smoking a joint leaked online.
Months later, another Zayn substance abuse scandal erupted when Matt Lauer questioned the rest of the band about his absence during an appearance on Today.
"He's in bad shape, which is the real reason he went home to London," says the anonymous insider. "He's been going down fast and it was decided that an intervention was needed.
"It was decided that it was best for him to go home and take care of him for right now."
That explanation might never be confirmed, but one thing is for sure - the many zealous fans who have already reacted to Zayn's departure on Twitter will likely have an opinion or two about this latest allegation.