It’s nearly impossible to keep the romantic relationships straight when it comes to the cast of Vanderpump Rules. Stassi Schroeder used date Jax Taylor, who previously had a fling with former SUR server Laura-Leigh. Kristen Doute is currently in a relationship with Tom Sandoval, but he may or may not have hooked up with his good friend and fellow bartender, Ariana.

Our heads are spinning.

However, in a new sneak peek for Season 2, Episode 7, Katie Maloney drunkenly drops a bomb that no one could have expected.

“Last night after Peter’s birthday, Katie completely went to the dark side,” Stassi reveals. “Katie said that Jax told her that Tom and Ariana hooked up. But the biggest bomb she dropped was that Kristen and Jax f—ked.”

When Katie later shows up to a yard sale organized by the other girls, things quickly take a turn for the worst.

“I hate myself!” Katie cries. “More than you hate me, more than you hate me, more than you will eventually hate me. I don’t know what you want from me!”

Watch this sneak peek from Vanderpump Rules Season 2, Episode 7, then make sure to tune in when it airs on Monday, December 16 on Bravo!