The relationship between siblings and The Real Housewives of Beverly Hills stars Kyle Richards and Kathy Hilton is at its lowest, and it doesn't look like that will change soon if the former's words are anything to go by. Kyle and Kathy's recent feud began after Lisa Rinna claimed Kathy had a psychotic breakdown during the RHOBH cast trip to Aspen, which cameras didn't record. According to Lisa, Kathy hurled several insults at her castmates including her sister, Kyle, whom she allegedly vowed to ruin. In a confessional, Lisa claimed Kathy vowed to destroy Kyle and her family if it was the last thing she ever did.

https://screenrant.com/real-housewives-of-beverly-hills-kyle-kathy-update/