Reality TV star Khloe Kardashian grieved for stepdad Bruce Jenner when he transitioned into Caitlyn.
Khloe, now 35, says she felt a sense of loss and felt devalued for not being told of Caitlyn’s plan sooner.
Caitlyn, 70, revealed a feud with Khloe on I’m a Celeb, saying she had been “p***ed off during the transition”.
They have not spoken for five years and Caitlyn said she is not sure what her “issues” are.
Keeping up with the Kardashians star Khloe also thinks Bruce’s decision to become Caitlyn broke a deathbed promise to her biological dad Robert to “always take care of them.”
Robert, who represented OJ Simpson and was also dad to Kourtney, Kim and Rob, died of oesophageal cancer in 2003 when his ex-wife Kris was married to Olympic champ Bruce.
Just as she grieved for her dad, Khloe went on to grieve for her second dad Bruce, when he transitioned.
Khloe’s heart went out to Bruce but she wrote in her book Strong Looks Better Naked: “I saw the transformation as a huge loss.
“In some ways I felt the worst part was that other people had known about the transition before we did. I felt devalued by that fact.
“It was about my own loss; it was about the pain I felt because he was walking out of our lives.”
Following her split from Kris in 2013, Caitlyn began secretly having surgical procedures.
But Khloe claimed Caitlyn had refused to tell them the truth about her new identity and that she let them find out through the media.
Khloe told The Ellen DeGeneres Show: “We kept asking him, ‘Bruce, like what’s going on? We’re hearing all these rumours?’ and he kept telling us one thing but really he knew he was transitioning and wouldn’t be honest with us.”
Caitlyn is said to have reacted to the outburst with a string of angry messages, but Khloe was unapologetic for the things she said.