Our insider added: “Kate and William are often on the identical web page, however Harry has all the time been a delicate topic.
“William began to really feel like Kate wasn’t setting clear boundaries, and that precipitated pressure.
“She got here to see that making an attempt to repair one thing past her management wasn’t price placing her marriage below strain.”
The choice comes as Kate continues her gradual return to public life following her most cancers analysis and remedy earlier this 12 months.
Final week, she pulled out of an look at Royal Ascot after attending Trooping the Color and a go to to the V&A East Storehouse museum, prioritizing her well being and restoration.
Sources say Kate had hoped to see Harry throughout his go to to London in Might, when he appeared in courtroom in search of to overturn the UK authorities’s refusal to supply state-funded safety.
However these plans have been quietly shelved.
“The timing simply wasn’t proper,” our supply mentioned. “Tensions have been operating excessive, and William was firmly in opposition to it.”
In a BBC interview following his failed authorized bid in his safety bust-up, Harry blamed his cancer-stricken father King Charles, 76, for the choice, and in addition moaned: “He will not converse to me due to this safety stuff, however it might be good to reconcile.
“I do not know the way for much longer my father has.”