"Something's going on, and I don't like it," Lisa Vanderpump foretells in a scandalous Vanderpump Rules sneak peek

Lisa Vanderpump always says it best.

“Something’s going on and I don’t like it,” the Real Housewives of Beverly Hills star says in an Vanderpump Rules season 4 trailer. “I smell trouble.”

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Here are 5 of the most shocking moments from the scandalous the sneak peek.

1. Tom Finally Gets Down on One Knee

“I can’t make the commitment,” Tom Schwartz tells Vanderpump in the clip. However, after longtime girlfriend Katie Maloney hit him with an ultimatum last season, the aspiring model finally takes the plunge and (Grab the tissues!) asks Maloney for her hand in marriage.

2. Kristen and James Call It Quits After a ‘New Girl’ Arrives

After making their relationship public last season, it seems like there may be trouble in paradise for Kirsten Doute and James Kennedy. Could there possibly be a love triangle brewing among the couple and a new girl Lala? In the clip, Kennedy reassures Doute that nothing happened between him and Lala. Doute won’t be fooled though … or will she?

3. Scheana’s Marital Bliss Is Shaken by an Unexpected Curveball

Just months after their fairytale wedding last season, newlywed life for Scheana and Mike Shay seems to be coming to an end.

“He’s just been drinking so much lately,” a tearful Scheana says in the clip.

“He needs to get clean,” Vanderpump says. “He needs to take responsibility for the fact that he’s married this girl and he needs to get his s— together.”

4. The Return of the Almighty Stassi Is upon Us

After a nightmare of a third season, there was speculation that Stassi Schoreder would not be returning to Vanderpump Rules. Think again! The self-proclaimed champagne queen is back – and she’s holding a bottle of Pinot Grigio. “You hate me Lisa,” Schroeder says in the clip. In true Vanderpump fashion, the restaurateur responds, “You’re not important enough to hate.”

5. Jax Gets Arrested … Again

“I’m never going to be nice about you until you radically change,” Vanderpump tells Jax Taylor in the clip. “How am I going to radically change?,” Taylor responds.

Good question.

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