Kate Middleton reportedly holds a lasting resentment towards Meghan Markle for what she sees as an "ultimate betrayal" of the Royal Family. According to sources, the breaking point was Prince Harry and Meghan's interview with Oprah Winfrey, which Kate perceived as a breach of trust.

The source shared, "Kate has taken a firm stance – she's unwavering in her stance on them. They never expressed remorse for their fabrications. Yet, it's tougher for William as Harry is his brother. It's an unfortunate situation."

After relocating to California in 2020 with their children, tensions between the Sussexes and the Royal Family escalated. The couple produced a documentary series detailing their life and decision to distance themselves from the Royal Family. Prince Harry's memoir further strained relations, accusing family members including Queen Camilla and Prince William.

While William hopes to mend fences with Harry, Kate remains hesitant. The source revealed, "William aims to extend an olive branch to Harry. It's a surprising reversal, but he deems it overdue. However, Kate believes Harry and Meghan have inflicted enough damage and could cause more if allowed back."

Reportedly, Kate and William even quarreled over this issue. Despite the Queen's passing and a seeming reconciliation, Kate found the joint appearance with the Sussexes at the Queen's funeral challenging.

The alleged feud highlights the lingering tensions within the Royal Family and the complex dynamics at play.