Longtime cast members shouted at each other, cried and threatened to tell all on Tuesday's "The Real Housewives of Beverly Hills" Reunion Part 3, reports E! News.

Lisa Rinna won the cursing crown for the season, though Eileen Davidson thought Brandi Glanville has the dirtiest mouth. Rinna dropped the most f-bombs, so she wins.

"Thank you. I'll put my crown on my 20-year-old hairdo," Rinna said, adding that husband Harry Hamlin has asked her to curse less.

Davidson was a beacon of sanity in the reunion's chaos. She said little, but revealed that Glanville's dirty mouth annoyed her because it invoked constant graphic imagery, which seemed trashy.

One of the most intense moments of the show was when Kim Richards whipped out her cell phone to provide proof that Rinna sent her threatening text messages after filming was completed. The messages threatened violence against Kim if she didn't "own up to her s**t" or if she kept being "too mean" with her sister, Kyle Richards.

"Be very careful or I will f**k you up. You be nice to your sister. You believe her and stop telling lies, in that order. Thanks," one of Rinna's messages read.

Kim said Rinna's text messages "frightened" her. Rinna tearfully apologized. Kim accepted. The two hugged.

Glanville accused Kyle Richards of smoking pot, which Kyle denied.

The Richards sisters had a major showdown about what happened when Kim's dog, Kingsley, bit one of Kyle's daughters. Kim threatened to reveal something about Kyle, but didn't. Bravo used a split-screen as the two sisters yelled and pointed at each other so viewers got every dramatic detail.

Kyle began to lose it, and Rinna offered a whispered piece of advice to her, "stay strong."

Lisa Vanderpump was the voice of reason during the sisters' argument, saying that if Kim and Kyle don't support each other during major milestones, one day they would be "90 and regretful."

Reunion host Andy Cohen asked, "What happens now?"

"I really don't know," Kim said. Kyle said she couldn't talk about it.

The big question: Who's coming back next year?