R-Patz vows to keep mum about split from love-cheat Stewart

London, August 16 (ANI): Robert Pattinson, who has split from long-term girlfriend Kristen Stewart after her philandering scandal, has vowed to "stay professional" despite all the heartache.

The Brit hunk has agreed a peace pact with the 22-year-old and the duo has decided never to lift the lid on their break-up, the Daily Star reported.

The star, who was holed up in his co-star Resee Witherspoon's holiday ranch after the twilight couple hit troubled waters, will be seen with his cheating ex during promotion of their upcoming movie 'Breaking Dawn 2'. (ANI)