Video:Robert pattinson Passes On blasting kristen Stewart For Cheating Scandal

The interview just aired ... and RPatz pretty much came to one conclusion -- he needs a publicist asap. But like we told you, he still did NOT bash Kristen.

While eating pints of Ben & Jerry's, Jon joked with Rob ... "Boy, you are better off, kick her to the curb!"

Stewart buttoned up the convo by saying, "When you are young and you break up it's powerful and you feel like the world is ending. This is first time I've seen the world actually react that way. It's insanity." Well said.