The Twilight star was devastated after looking at pictures revealing Stewart’s fling with the married director. Pattinson has even moved out of the home he shared with Stewart. “Rob wants to have a man to man chat with Rupert to find out exactly what happened between him and Kristen,” said a source close to Pattinson.

“Kristen has already betrayed his trust by cheating, so he can’t be sure that she will tell him exactly what went on between her and Rupert. Rupert has a wife and a family to save, so Rob feels like he has nothing left to lose and would be honest with him,” the source added.

According to the insider, Pattinson feels doubly betrayed because he trusted Sanders.

“Rob really was blindsided by this and he’s going through the typical stages of being cheated on,” the source said.

“He was hurt and heartbroken, then angry and p****d off, and now he just wants answers. He feels like he needs to know exactly what happened, how far it went and how many times, so he can figure out if this is something he can move past. He’s not ready to talk with Kristen, it’s too painful, so he’s going to Rupert,” the source added.

Stewart has apologised and already released a statement calling the affair a “momentary indiscretion”. But her cosy pictures with the director have raised fresh doubts in Pattinson’s mind.