Schroeder opened up about the new cast member explaining she would fit in with the group "if she was actually nice"

Vanderpump Rules star Stassi Schroeder isn’t in the market for new friends.

During a recent interview with Jenny McCarthy on SiriusXM’s The Jenny McCarthy Show, Schroeder, 30, opened up about why she’s not thrilled about the new cast members joining the Bravo series — Billie Lee in particular.

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McCarthy, 46, started the conversation by asking Schroeder if there was ever a moment on the show where she felt she acted out or started a fight just to get more screen time.

“Honestly, I was there from the beginning, so I don’t feel like I ever really had to,” Schroeder said.

“I don’t really feel like any of the original cast members have to prove themselves,” she continued. “We’re all such great friends and we have history and we’re like family and we started this together. We’re so ride or die with being honest and making a great show.”

However, Schroeder can’t say the same for the newcomers. “I don’t actually feel that bad for new people, because I wish they would just leave.”

Schroeder later admitted that she feels for her new costars because it “must suck” to try and fit in with such a tight-knit group, but the newbies aren’t leaving the best impressions.

“They come in and they think they’re about to be a star, and it’s, like, ‘You have no idea what’s coming for you,'” Schroder told McCarthy.

When McCarthy asked Schroeder which cast member is “most guilty,” Schroeder said “Billie Lee.”

“It’s just the things she tries to fight about is ridiculous,” Schroeder said of Lee, 35.

Back in July, Lee expressed her frustration with her female cast members for not including her in a party they were throwing at Sur accusing them of leaving her out because she’s transgender. The accusation led to a big on-camera blowout fight between Lee and other Sur staff.

“When yo coworkers don’t include the only trans girl in GIRLS night at your own job! On the night you work!” Lee wrote on Twitter at the time.

Image zoom Billie Lee and Stassi Schroeder Lester Cohen/WireImage

Schroeder said Tuesday that Lee just doesn’t fit in.

“‘You don’t even go here’ — that’s what it feels like,” Schroeder said quoting Mean Girls.

“If she was actually nice and kind and friendly to us, I think she would [fit in], but to just expect to be invited to every little thing we do, when we don’t know you, and pitch a fit when you’re not… acting like we’ve been friends for years? You just met us, so, no you’re not coming to my little four-girl wine night.”

However, Lee tells PEOPLE that she has not been seeking Schroder’s approval or even friendship: “I’ve never fought with Stassi and I for sure never tried to be bffs with her.”

“I don’t recall missing out on a wine night of only four? So to call me mean is another crazy accusation. I’ve barely hung out with her, but thus far our interactions have been nothing but kind,” the reality star says.

“And to call my ‘fights’ ridiculous? It’s ridiculous to want to be included? It’s ridiculous to want diversity and inclusion at the workplace? Shame on her,” Lee adds.

Despite her differences with Schroeder, Lee is happy to be on Vanderpump Rules.

“I’m living my truth, on television, because I want people who went through the same thing that I went through to know that they have somebody,” Lee tells PEOPLE. “And when I was little and I was bullied, and I was told I was wrong my whole life, I was alone.”

As for Lisa Vanderpump, Lee calls her “my fairy godmother.”