Katy Perry, John Mayer Split Again Over 'Roar' Singer's Lack Of Attention?

Katy Perry and John Mayer allegedly are no longer an item after they briefly reunited during a break in her Prismatic World Tour.

In an article from Radar Online, Katy Perry and John Mayer were bound to split because their union "was more about convenience than anything else."

"The reason they have split in the past is because Katy gets busy. John can't handle the lack on attention, and she can't handle the trust issues she has when she's so far away. So they've learned that it's better to just take a break when they can't be in the same place," the source told the site.

In an interview with Billboard magazine, Katy Perry bowed out of answering the question between her and John Mayer.

"What I will say is that to have any relationship at this level you have to just be protective and figure out how to navigate it," she said. "There is no handbook."

The "Dark Horse" singer added that in her previous relationships, she has always guarded about what she say in the press.

"In all my relationships, I've learned how I have to be more careful and that it's not up for public consumption," she added.

In an earlier interview, Katy Perry claimed that she also learned from her past relationships but not before seeing a therapist to thresh out her issues.

Katy Perry and John Mayer started dating in the summer of 2012 after the "Fireworks" singer and Russell Brand divorced following a 14-month union. The two singers finally split up in February 2014 after rumors that they have gotten engaged.

In the Radar Online article, John Mayer is also allegedly jealous of the career of Katy Perry, which may have contributed to the split.

"The fact that he does not have anything major going on with his career is really starting to take a toll on their relationship. Katy is at an all-time high. She is starting to give in to what everyone around her is saying, that maybe she is too good for him," the article alleged.