"I love you, but I'm not part of your game anymore," Glanville tells her former BFF, while Kyle Richards's friendship with Vanderpump also ends on shaky ground

The Real Housewives of Beverly Hills gathered to celebrate the centennial of Beverly Hills, but the Hundred Years’ War between Lisa Vanderpump and the wives only escalated.

“I’ve been under your spell for two years,” Brandi Glanville told Vanderpump, who abandoned the ladies in Puerto Rico after Glanville told Kyle Richards that Vanderpump had encouraged her to bring damaging tabloids about her husband to a girls trip in Palm Springs. “Truth is, I’m stronger on my own. I don’t ever want to be on the other side of your anger.”

Continued Glanville: “With this fight, I finally feel free. I love you, but I’m not part of your game anymore.”

“We loved you,” replied Vanderpump, 53.

“That’s why I’m so hurt right now,” said Glanville, 40.

“I’ve always supported her, and this is how she repays me?” wondered Vanderpump.

“I’m looking in your eyes, and I don’t believe you,” said Glanville, before the two stood and went their separate ways. “I thought of Ken and Lisa as my family.”

And things didn’t end well for Richards and Vanderpump, either.

“It’s up to you who you believe,” Vanderpump told Richards, after she had approached her about what went down in Puerto Rico. “I can’t persuade you.”

“You’ve always said Brandi isn’t a liar, she’s a straight shooter,” Richards, 45, said. “I need to know you’re my friend.”

“I can’t do this anymore,” Vanderpump replied.

Even Yolanda Foster got into the fray, continuing her longstanding feud with Vanderpump’s husband, Ken Todd, who previously called her “stupid” and did it yet again.

“What is Ken’s issue with me?” Foster asked. “I haven’t seen Beyoncé with that much attitude.”

When Foster asked Todd to walk away from a conversation the wives were having, he touched her arm.

“Don’t touch me,” Foster, 49, yelled. “Do not touch me, Ken.”

“You are so stupid,” he said.

“I’m a very intelligent woman,” Foster replied.

“You aren’t that intelligent,” Todd retorted, before he and Vanderpump exited once again, leaving the gala and the wives as they had in Puerto Rico.

But they all are back together on Monday (9 p.m. ET) as part one of three-part reunion begins, and – if the preview (below) is any indication – these Hills will be alive with the sound of fighting.