Lisa Vanderpump 2015: 'Vanderpump Rules' Star On Scheana Marie, Mike Shay Drug Use [VIDEO]

Lisa Vanderpump is quite opinionated when it comes to her co-stars on Vanderpump Rules.

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Following the latest episode of the Bravo reality series, which is a spinoff of The Real Housewives of Beverly Hills, the restauranteur took to her blog, where she weighed in on Scheana Marie's marital troubles and James Kennedy's cocky behavior.

"Oh, Scheana. She's got her head in the clouds," Vanderpump wrote in her Bravo TV blog on Tuesday. "It kind of scares me, really. Scheana is just so certain that it's going to be that easy just to kick this addiction. And it doesn't make sense. Scheana needs friends like Katie and Ariana to tell her how it really is."

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Although Mike Shay admitted to Vicodin use and withdraw symptoms on the show, his wife now claims he's drug-free, but still drinking casually.

As for James Kennedy, who split from Kristen Doute on Tuesday's episode (but not before taking Lala Kent out on a date), Vanderpump was unimpressed with his cold-hearted behavior towards his ex-girlfriend.

"I'm seeing James and his arrogance is superseding his talent," Vanderpump told fans. "Maybe he needs to pull a few busboy shifts right now. What is this? I mean, really? James is so caught up in his arrogance, I almost don't know this person in front of me right now that I'm watching."

Vanderpump Rules season four airs Monday nights at 9 p.m. on Bravo.