Bruce Jenner reportedly doesn't care how Kris Jenner feels about rumours he's dating her best friend.
The 58-year-old matriarch is believed to be devastated following the news her estranged husband, whom she split from last year, is now dating her pal Ronda Kamihira but the Olympic gold medallist isn't interested in the 'Keeping Up With the Kardashian's star's opinion.
A source told PEOPLE: "Bruce isn't really concerned with her feelings about it. But Kris is devastated. Ronda was her best friend of 20 years."
Rumours that Bruce had started dating again began to swirl earlier this month when he and Ronda were spotted at a Sir Elton John concert at the Staples Center in Los Angeles at the beginning of October.
The news came as a shock to Kris, who filed for divorce from Bruce in September, as friends believe she was heartbroken by the claims her former beau had moved on so quickly after 22 years of marriage.
The source said earlier this month: "She's so sad and completely heartbroken."
However, Kris, who has daughters Kendall, 18, and Kylie, 17, with Bruce, has been putting on a brave face and insisting she just wants the ex-athlete to be happy.
She last week: "I don't know who he's dating. He doesn't like check in with me and give me a play-by-play, but it's his life, and you just want the guy to be happy. You know, he's still the father of two of my children. We're friends."
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