Is Kristen Stewart jealous of Robert Pattinson’s older woman?

44151, LOS ANGELES, CALIFORNIA - Sunday August 29, 2010. Robert Pattinson and his publicist Stephanie Ritz arrive at Jimmy Fallon's Emmys afterparty at Trousdale in Hollywood. Photograph:  David Tonnessen, PacificCoastNews.com   LOS ANGELES, CALIFORNIA

It has been reported that Robert Pattinson’s agent is coming between him and rumoured girlfriend Kristen Stewart.

It’s got ‘probably just a rumour’ written all over it, but here we go.

According to the National Enquirer, his relationship with Twilight c0-star Kristen is “on the rocks,” because she “has become resentful of his friendship with his much older agent Stephanie Ritz.”

“Rob and Stephanie have always been close, and Kristen is uncomfortable with it,” a friend told the NE.

The story goes on to mention how Rob spends a lot of time with Stephanie – but she IS his agent after all…