A source told Us magazine that the friendship of the duo has suffered because of this and they are not close anymore.

This Grammys, the due didn’t sit together, Perry, 28, spent the evening with John Mayer while Rihanna and Brown sat elsewhere in the audience.

Katy Perry
Katy Perry. Pic/Santa Banta

Rihanna. Pics/Santa Banta

Chris Brown
Chris Brown. Pics/Santa Banta