Los Angeles - Kris Jenner feels "torn apart and angry" that Bruce Jenner is dating her former assistant.
The 58-year-old matriarch split from the 64-year-old Olympic gold medallist last October following 22-years of marriage but is reportedly fuming that her estranged husband is now romancing her friend Ronda Kamihira.
A source told TMZ.com: "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 4 October in Los Angeles. She feels humiliated and played."
The source added: "Kris feels torn apart and angry."
The former couple - who have daughters, Kendall, 18, and Kylie, 17, together as well as four other children each from previous marriages - have spent a lot of time with Ronda's family over the past 20 years.
A source said previously: "Kendall and Kylie grew up with her two kids and have been their best friends."
The Keeping Up With the Kardashians beauty - who filed for divorce from Bruce last month - isn't looking for a new relationship any time soon but hopes to fall in love again at some point in the future.
She said: "I want to definitely be in love, I like being in love, I think there's no better feeling in the world. So yeah, I mean that would be amazing."