Robert Pattinson has cancelled a public appearance in light of Kristen Stewart cheating on him.

The Twilight actor has not been seen since his co-star and girlfriend of four years confessed to having an affair with her Snow White and the Huntsman director.

Entertainment Tonight has revealed that the 26-year-old has pulled out of a scheduled appearance to promote his movie, Cosmopolis.

It is not yet known whether Robert will appear at the premiere scheduled to take place in New York City next month.

Robert apparently asked Kristen to move out of their $6 million Los Feliz, California home and a U-Haul truck was seen outside the mansion over the weekend.

It has been reported that the former lovers are no longer on speaking terms and are fighting over custody of their dog, Bear.