Eyewitnesses tell the New York Post that Pattinson and Stewart had an emotional tête-à-tête in between posing (left) at last Sunday's Teen Choice Awards.
"Rob and Kristen were having a long and intense conversation backstage," relays a snitch, "and he looked miserable, heartbroken and humiliated. She was pleading."
Alas, he may not have been the only person in recent days to be on the receiving end of her entreaties. The paper says K. Stew "begged" the paparazzo who took the pics of her sucking face with Sanders not to publish them.
"She's very angry at herself. She's really not blaming anyone but herself," a spy tells Us Weekly.
"Rob is really hurt by Kristen," Captain Obvious a source tells Radar. "Catching her cheating is not at all what he expected from her."
Speaking of expectations, does Stewart expect forgiveness? Click on …