CALIFORNIA: Katy Perry dumped John Mayer because he kept breaking his promises. The Roar hitmkaer was apparently sick of being let down by the No Such Thing rocker, so kicked him to the curb. “The last time they broke up - John won her back by making a ton of promises - he was going to put her first, but now he’s falling back into his old patterns,” a source told HollywoodLife. “Like he shuts off his phone and disappears all day and night - he says it’s because he needs alone time, but it’s sketchy for sure. “Katy isn’t willing to put up with any shenanigans. She’s devastated but she felt she had to do this to take care of herself.”–SS