Bruce Jenner dating Ronda Kamihira has reportedly made ex-wife Kris Jenner feeling "devastated", "duped" and left her "crying herself to sleep."

A Friday report from People shows how the 64-year-old reality star has been enjoying himself less than two weeks after his divorce with Kris. With Bruce Jenner dating Ronda Kamihira, it seems that the former Olympian is moving on, but who is Ronda Kamihira exactly?

According to multiple reports, Bruce's new lady love is his ex Kris Jenner's former assistant and longtime friend.

51- year-old Ronda Kamihira is a former neighbour of the Jenners in Hidden Hills. She has been divorced and has two daughters, Maddy and Spencer, who are also close to Kris and Bruce's daughters Kendall and Kylie, reported the Daily Mail.

Rumors of Bruce Jenner dating Ronda Kamihira first circulated after the now official couple was spotted on Oct. 4 at an Elton John concert in LA, according to Hollywood Life. It appears that they're not trying to hide their relationship from Kris or the public.

Because of Bruce Jenner dating Ronda Kamihira, "Kris is devastated," told an insider to People. "This was her former assistant and best friend of 20 years. Kendall and Kylie grew up with her two kids and have been their best friends."

A source also told TMZ that Kris is 'crying herself to sleep every night," with Bruce Jenner dating Ronda Kamihira seemingly a fact now.

"She's torn apart and angry," the source added,

Since Ronda Kamihira is one of Kris' closest friends, Kris reportedly feels "completely duped," a source told HollywoodLife.com.

As for finding out if the rumors of Bruce Jenner dating Ronda Kamihira are true, the 58-year-old reality star allegedly hasn't confronted her ex-husband about his new relationship.

But apparently, she found out about Bruce Jenner dating Ronda Kamihira behind her back. She reportedly feels so betrayed by her friend that she doesn't care if she never speaks to Bruce ever again.

"This has got to be one of the biggest blows to Kris in her life. She feels completely duped by Ronda. It's complete and utter betrayal," a source told HollywoodLife.com.

"It hurts badly because Ronda was one of her best friends, especially when she was contemplating filing for divorce from Bruce. Ronda was also one of the first to know Bruce was moving out," the source added.

As for what Kris can do to Bruce, "Mad is an understatement. Kris could strangle Bruce. She doesn't understand how he could do this to her after all these years. He could date anyone, anybody on Earth. But Ronda? She was so close to the family," said the source.

However, it's not only Bruce who seems to have moved on from the split. Since separating in October 2013 after 22 years of marriage, Kris has been romantically linked to former Bachelor Ben Flajnik. She has also been spotted going dining with Britney Spears's ex-fiance Jason Trawick several times.

Even before the Bruce Jenner dating Ronda Kamihira rumors have circulated, the Olympic athlete has also been romantically linked to several stars.

"We are living separately and we are much happier this way. But we will always have much love and respect for each other. Even though we are separated, we will always remain best friends and, as always, our family will remain our number one priority," the two said in a statement at the time of the separation.

According to court documents, Kris and Bruce cited irreconcilable differences as the reason for the divorce, reports the International Business Times.

Kris has four children from her previous marriage to Robert Kardashian - Kim, Kourtney, Khloe and Rob Kardashian, while Bruce also has four other children from previous marriages - Burt, Casey, Brandon, and Brody Jenner.

Kris reportedly asked for the custody of her only minor child with Bruce, 17-year-old Kylie.

If Bruce Jenner dating Ronda Kamihira is Bruce's way of showing he has moved on, Kris seems to be consoling herself from the split with some very expensive retail therapy. On Friday, she was seen shopping in Beverly Hills and all the while driving a new Range Rover. She already has one in black, but the new purchase is a 2014 on white, costing between $90,000 and $116,000.