Kris Jenner has been crying every night over Bruce Jenner's new date ... who happens to be Kris' former best friend for the last 20 years.
We're told Kris feels utterly betrayed by Ronda Kamihira ... who to this day has not said a word to her about seeing Bruce. Kris has seen photos of Bruce and Ronda in public, including the Elton John concert on Oct. 4th in L.A. She feels humiliated and played.
We're also told Kris has not confronted Bruce about Ronda -- and doesn't care if they're banging or not. She feels Bruce being out with Ronda on dates -- even casual ones -- given that Ronda was a family friend with whom they vacationed and shared holidays -- is just appalling.
One source said Kris is "torn apart and angry."