The Ultimate Insult! Kyle Skips Funeral For Kim's Ex-Husband Monty

The Richards sisters' feud clearly isn't going anywhere! Despite a temporary truce when Kim Richards' husband Monty Brinson died last month, Kyle Richards fired it all up again, RadarOnline.com has learned, when she skipped his memorial and funeral this weekend!

As RadarOnline.com reported, the Real Housewives of Beverly Hills star had planned on going to the funeral. But according to an insider, "Her husband Mauricio wasn't invited, and Kyle felt she had no other recourse but to decline."

Kathy Hilton held an intimate gathering at her family's mansion on Thursday night, celebrating Brinson's life.

"Paris Hilton, and the entire family was there," the source said. "Everyone but Kyle. And none of Kyle's kids were there either."

In addition, "Kyle also didn't attend the funeral over the weekend," the source said. "No one mentioned Kyle's absence."

After Brinson, 58, passed away at Kathy's house, Kim, 51, posted on social media, "Monty was an amazing person with an amazing soul… We shared over 30 years of Love & Happiness and brought a beautiful daughter into world. I am so grateful for all that we shared. I know we will be together again one day. I love you Monty."

Brinson was married to Richards from 1985-88. Though they split, they maintained a close friendship, even attending family events together in recent years.

Sisters Kyle and Kathy, 56, have been feuding since drama about Nicky Hilton's wedding aired on the RHOBH.

Now, the source claimed, "Kim seemed to be at peace with the situation. Of course she misses Monty, but she is coping with the loss in a very healthy way."