By Radar Staff
Rob Pattinson is angry that his estranged girlfriend Kristen Stewart is staying with her producer pal Giovanni Agnelli and suspicious of his motive in taking her in.
RadarOnline.com broke the news that the Twilight beauty had been staying with Agnelli since fleeing from the home she shared with Pattinson.
“Rob knows Agnelli and has been calling him a lot since Kristen has been there,” an insider tells us exclusively.
PHOTOS: Take A Look Inside Robert Pattinson And Kristen Stewart’s LA Love Nest
“He wants to know why Kristen is staying there at his house? He is super angry now and has accused Giovanni of sleeping with Kristen too.”
As RadarOnline.com has been reporting, Stewart and Pattison split after her affair with her married Snow White and the Huntsman directer Rupert Sanders was revealed.
Angelli produced 2010′s Welcome to the Rileys which starred Kristen and James Gandolfini.
PHOTOS: Robert Pattinson & Kristen Stewart At London Premiere Of Breaking Dawn
“Giovanni got a call from Pattinson around four this morning, threatening him if he has been sleeping with Kristen,” the source says.
“Rob is beside himself over Kristen’s betrayal. No one has ever seen him like this.”
PHOTOS: Child Star To Bigscreen Bombshell Style! Kristen Stewart’s Transformation
Kristen Stewart Was Cozying Up To Married Director’s Kids Before Affair Was Exposed
Charlize Theron Furious With Co-Star Kristen Stewart Over Affair With Married Director
New Photos Of Kristen Stewart & Married Director Debunk Claims Of ‘Momentary Indiscretion’
Kristen Stewart Writing Letter To Director’s Wife Apologizing For Affair!