Later on in a confessional, Stassi admitted that this situation was giving her "PTSD" about her past issues with Kristen. For those who may not know, the once BFFs previously had a

Later on in a confessional, Stassi admitted that this situation was giving her "PTSD" about her past issues with Kristen. For those who may not know, the once BFFs previously had a falling out over Kristen's affair with Stassi's exJax Taylor.

As Stassi became more hysterical, Beau began shutting down—which only made matters worse.

"You're yelling at me," a frustrated Beau expressed.

"I don't care! I am your f--king person, am I not?" Stassi sounded off. "Am I not? Am I not? Beau, am I not?"

Amid Beau's silence, Stassi stormed out of the party, which left her boyfriend beyond confused.

"What the f--k was that?" Beau remarked to Katie. "Oh my god, I need you to help. I need something. I'm supposed to f--king propose to her tomorrow."

Was Stassi's anger towards Beau justified? Be sure to let us know your thoughts!

Vanderpump Rules airs Tuesdays at 9 p.m. on Bravo.

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