JWoww Reacts in Shock, Rage to Boyfriend Groping Jersey Shore Co-Star; Couple SPLITS [Updated]

What happens in Vegas stays in Vegas?

Not when a bunch of MTV cameras are fixated on your every move.

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In the case of Thursday night's Jersey Shore: Family Vacation episode, this meant that Jenni "JWoww" Farley had to learn that her boyfriend really does sort of suck.

Immediately after meeting up with the whole group in Las Vegas on the episode, Zack Clayton Carpinello took an odd liking to Angelina.

While day-drinking at a pool party, Farley made a comment about how Angelina doesn't have sex with her fiancé, Chris, "but wants to bang everything else."

Okay then.

Angelina Pivarnick in Jersey

"Yeah, what's up with that?" Zack said to her. "Why don't you have sex?"

"I am having sex," Angelina fired back, to which Zack replied: "Why didn't you before?"

After Angelina said they "had a little bit of a dry spell," Zack, again, wanted to know why. He kept pressing her on this personal topic, leaving Angelina clearly annoyed.

But she said it had to do with stresses related to their house.

Zack, whose interest in Pivarnick's bedroom life is a tad eyebrow-raising, still wasn't finished sticking his nose in Angelina's business.

"When's the last time you did it?" he asked Angelina, who was as taken aback by this as viewers were, and answered, "Last week?"

In her confessional, the reality star was rightfully pissed off.

Angelina and JWoww

"If he comes at me sideways tonight, it's game on, bro!" she vowed.

"It ain't happening. I'm gonna call him out and be like, 'You have a 2-inch dick. Get the f--k out of here. You don't know shit.' I don't like him."

At press time, the measurement of Zack's dong couldn't be verified.

Next came an awkward dinner, at which Zack kept referring to Angelina as his "bestie" and Deena suggested everyone "squash this bullshit."

Angelina Pivarnick in a Cap

Then, as Jersey Shore fans have grown accustomed to seeing for nearly a decade, the gang got hammered and went out to a nightclub.

Early on, Angelina grinded on Jenni ... and then leaned in and kissed both Zack and JWoww. Gotta love being desperate for attention.

Jenni didn't seem to care, but she also seemed to have no idea what was going on. The alcohol was flowing freely, folks.

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Jenni and her limp body eventually threw themselves on Zack, who proceeded to put his hand around her neck while whispering in her ear.

Within seconds, Farley was sitting on the floor, asleep with her head in between her man's legs. She was just SO wasted, you guys.

From there, Angelina began dancing by Zack's side, and that's when things really got terrible.

Jennifer Farley and Clayton Carpinello

He placed his arm around her lower waist/hip area and Angelina's eyes immediately bugged out of her head - she told the camera that "his hands are big, so it was on my ass and my side."

Zack pulled Angelina in close and said, "Are we friends now?"

Editor's Note: Who the hell actually acts like this?

He even grabbed her legs, prompting her to get up and start dancing next to him instead. Ang was clearly getting a little uncomfortable.

Angelina Pivarnick on Jersey Shore

"One minute he's asking me about my sex life, the next minute he's grabbing me!" Angelina said in a later confessional, adding:

"He doesn't know what boundaries are. This is gonna be a problem."

In the elevator on their way out of the venue, Zack put his arm around Jenni. He peered over at Angelina and put his other arm around her.

JWOWW at the MTV Movie and TV Awards

As he leaned in, she stared straight into the camera and the episode ended. Crazy, right? Not just to viewers, but to Jenni as well.

Farley wrote on Instagram last night:

“After seeing tonight’s episode I’m pretty hurt. I feel disrespected by someone I called a friend and by someone who stated they loved me."

“For 5 months I was naive, probably laughed at and made into a storyline that will forever haunt me.”

jwoww states

“My heart hurts on so many levels,” Jenni continued. “One thing I learned from tonight’s episode is know your value. Don’t ever lower your standards.”

It is currently unclear whether or not Jenni is still with Zack and Angelina is still with Chris, for that matter, or how long either will last.

One thing is clear, however.

The women will face the drama head-on during an explosion argument in an upcoming episode. This is just getting started.

This is Zack Carpinello

UPDATE: A source tells celebrity gossip publication Us Weekly that Jenni has seen enough and that the couple is no more.

Details are sparse as of this report, but the website reported moments ago that the reality star “ended the relationship.”

More to come.