Katy Perry and John Mayer are working on their relationship.

The celebrity duo, whose on/off relationship has spanned a number of years, are reportedly making every effort to discuss their problems and find a resolution that will allow them to move forward together as a couple.

An insider told The Sun newspaper: ''They're spending a lot of time at his house talking over their feelings and trying to see if they can make it work.''

Last month, it was reported that Katy and John had once again decided to go their separate ways, although it's not known why things had soured.

However, a source previously claimed that Katy had developed ''trust issues'' with John being so far away from her for concerted periods of time.

A source close to the couple said: ''The reason they have split in the past is because Katy gets busy.

''John can't handle the lack of 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.''