Kristen Stewart reportedly "started yelling" at a meeting she had with Robert Pattinson in August.

The pair are rumoured to be breaking things off following Kristen's revelation that she had an illicit affair with her Snow White and the Huntsman director Rupert Sanders.

Kristen and Robert shared a Los Feliz home together and are discussing how to allocate their property.

Kristen has appeared in public wearing Robert's clothes recently and the pair can't seem to come to agreement on who owns what.

"They had a sit-down meeting with all their reps and lawyers last month," a friend told the American edition of OK! magazine.

"Kristen tried to speak to Rob but he ignored her, then one of his people stepped in and blocked her from trying again. She started yelling, saying he was being ridiculous, but he just looked at her like she was crazy."

Apparently Kristen is also extremely jealous of Robert partying with Katy Perry and Ashley Greene.

Robert is annoyed by her questions about his private life.

"The last time they spoke, Kristen made the fatal error of asking about his nights out with Katy and some of the other women he's close to," the source said.