James experienced a serious mental health crisis in 2017. During that difficult period, it was Kate and her sister who stepped in, attending family therapy sessions with him throughout his year-long cognitive behavioural therapy.
Kate has always been ready to help without hesitation.
The insider described her as James’ “rock,” saying: “They’re constantly in touch — talking and texting, sometimes late into the night. James knows that if he ever needs anything, Kate will drop everything to be there for him. That kind of support means the world to him.”

Kate’s Kindness and Strength
Despite dealing with her own health challenges after being diagnosed with cancer, Kate has continued to carry herself with grace and strength, even while stepping back from public duties to focus on her recovery.
The royal family has also faced another blow, with King Charles receiving a separate cancer diagnosis.
Even so, an insider praised Kate for her unwavering empathy and dedication to others.
They shared: “It speaks volumes for Kate’s compassion and selflessness that she has been able to be so supportive to her brother despite everything that was going on in her own life, but that’s just her nature. She’ll always do everything in her power to keep her family together.”