Kris Jenner is planning a tell-all interview.

The 'Keeping Up with the Kardashians' matriarch is upset at how she has been portrayed since Caitlyn Jenner - who was previously known as her ex-husband Bruce - revealed her female identity and said she was ''mistreated'' during their marriage, so she wants to share her side of the story.

A source told heat magazine: ''Kris is beyond upset The way everyone is jumping on that, 'I was mistreated' quote really rankles her. Kris feels she was the one who was hugely mistreated because Bruce wasn't honest with her about how she felt. She can't believe she's the bad guy in this.

''She is planning her own sit-down interview, probably with her good friend Kathie Lee Gifford.''

Relations between Kris and Caitlyn - who revealed her decision to transition in an interview with ABC News anchor Diane Sawyer - are said to have reached a low and they are unable to ''agree on anything''.

The source added: ''At the moment, Kris and Caitlyn can't agree on anything. Caitlyn hiring her own PR was a major slap in the face to Kris.''

As she struggles to deal with the situation, the 59-year-old star is also said to be unhappy with her daughter Kim Kardashian West and her closeness to Caitlyn.

The source said: ''She's feeling hurt by Kim because Kim is so onboard helping Caitlyn. Kim was even there for the whole Vanity Fair shoot and approved the team doing the new look.''