Katy Perry & John Mayer

John Mayer and Katy Perry recently called it a day on their on-again/off-again relationship, and though John wouldn’t talk much about it while visiting The Ellen DeGeneres Show earlier this week, word is it was a case of the ex! Apparently, John wasn’t feeling the fact that Katy was still cool with her ex-hubby, comedian Russell Brand.

“John and Katy together were like a volcano just about to go off,” a source close to them said. “Their relationship was incredibly volatile, stemming from the jealousy they both harbored deep inside.” More below!


Marisa Mendez

“Sure, Katy was unhappy that John constantly flirted with other girls and played up his heartbreaker image, even when she was standing next to him,” the source added. “But, Katy gave it back. She knew that she could push John’s buttons by comparing his flaws to what she saw was great in Russell, which he hated!”

Would you break up with your significant other if they were still cool with their ex? Sound off in the comments!

Source: RO