The tension between Yolanda Foster and sisters Kim and Kyle Richards revved up at Cirque School on this week's episode of Real Housewives of Beverly Hills. So what does Yolanda attribute the drama to?

"I'm not very diplomatic and wear my heart on my sleeve," Yolanda writes in her Bravo blog about why she spoke up after Kim's speech at Cirque School. "I cannot fake, make nice, or even pretend nothing ever happened between the Richards sisters and me. They insulted my integrity, and they continue to do so."

"I always wonder, what drives women like that?" Yolanda asks. "I assume the sad answer is insecurity and jealousy."

Yolanda says Kim was getting a little too preachy with her speech. "I don't particularly care for the way [Kim] spoke to me and repeatedly told us how to behave at an afternoon of adult women’s gymnastics," she writes. "I just don't agree with her lack of wanting to resolve issues, but rather choosing to swipe them under the carpet and fake OK for the day!"

Yolanda firmly believes that Kyle or "someone in her camp" claimed that Kyle was bullied by Brandi Glanville, Lisa Vanderpump, and Yolanda. "It's such a strong and serious allegation," Yolanda says. "None of us has any malicious intent when it comes to Kyle. I agree with Lisa, [Kyle] could have easily retracted that statement and cleared up the situation by tweeting about it, but she chose not to."

Do you think Yolanda was being rude to Kim, or was she right to speak up? And do you think Kyle should have tweeted about the "bully" comment?

Source: Yolanda's Bravo blog