Pattinson is said to be dating Riley Keough who is granddaughter of late singer Elvis Presley. Keough is an actress who has worked with Stewart in the film The Runaways. And Stewart is clearly not happy about this relationship. "Kristen is furious and has texted Rob and called Riley to find out what is going on, but apparently none of her calls have been answered," a source said.
Pattinson is believed to have first met Keough through Stewart. "Rob only knows Riley because of Kristen. Now they've been inseparable in the last few weeks and have been having low key dates at his Los Angeles home," the source said. The source added that Kristen is "seething" even though she "understands things are over between her and Rob". Kristen Stewart and Robert Pattinson have ended things with each other.
The couple from The Twilight Saga were dating for almost four years. "But to see him now dating one of her closest friends is just too much for her to deal with and seeing the pictures really hurt her," the source added.
Stewart and Pattinson split from each other in May. Pattinson discovered she had been back in contact with her Snow White And The Huntsman director Rupert Sanders, with whom she had a short affair last year. In July 2012, Kristen made a public apology to Robert after the photos of her affair were released in US Weekly. In her apology she said, "This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry." Looks like Kristen has not yet moved on from her ex-boyfriend.