'Jersey Shore' Tea-Shirt Time: Ronnie Admits He's 'Miserable' With Baby Mama and Still Loves Sammi Sweetheart

Let's recap: Last week, Ron brought home from the club four girls, one of whom -- a gorgeous blonde in a sheer top -- made it up to his bedroom, where he proceeded to lock the door behind him. As Deena Cortese told TooFab, the gang still doesn't "know exactly what happened, but [Ron] says he did not cheat."

Mike "The Situation" Sorrentino called Ronnie's escapade a "legendary bad decision," adding, "I thought that he held himself back at the last minute, but the chances of that, 50/50."

This week picked up with Pauly D managing to get Ronnie to open the door and let him escort his girl out of their Miami pad. Although initially annoyed that Pauly cockblocked, Ronnie complied and called her a cab.

While everyone else went to bed, Ronnie and Nicole "Snooki" Polizzi decided to stay up drinking and chatting about life. That's when he admitted he was "miserable" in his relationship and that he was confused with what he wanted to do. He said he was "raised the right way" and taught to be married before bringing children into the world, but when Nicole asked if he planned on proposing, Ronnie immediately said no.

"You're not gonna propose to her? I thought you were in love," Snooki said. "So she's not the one?"

"I mean, probably not, right?" he said.

"You're being so negative," Snooki said. "Why can't you marry this bitch?"

"Beacuse she's not--"

"Because you f-cking love Sam," Snooki interrupted. "I can't. Listen, you need to stop. Stop. Babe, get over Sam. It's been f-cking 10 years. The f-ck? Why are we still talking about this?"

Ronnie said he missed the "feeling of security," which he said he didn't feel with Jen, who wound up pregnant five months into their relationship. "No, I don't trust her for shit. I don't," he added. "So all I can do is act happy and be the best father I can be, and at the end of the day, I'm still f-cking miserable."

"If Jen was not pregnant, I don't know if I'd be with her," Ronnie said, adding that "every man wishes that he can be with the love of his life by being with someone for seven years, and then you don't end up with that person? Yeah, it hurts."

Ron also drunkenly said he was going to "cancel cable so that [Jen] can't see what happened."

It took a few unanswered phone and FaceTime calls for Ronnie to realize Jen might have seen photos of him out at the club with the girl(s). He started tweaking almost immediately. After a few shed tears, he was convinced his relationship was over.

Later that night, Mike called his girlfriend, Lauren, and she told him there was an entire Instagram account dedicated to following the cast of the "Jersey Shore" as they partied in Miami. Lauren said there were multiple videos of Ronnie dancing with a blonde girl in a see-through top at a club and that several people were tagging Jen in the comments section.

In the words of Pauly: "Ronnie will always be the president of the IFF -- the I'm F-cked Foundation -- 'cause he always gets himself f-cked."

"Jersey Shore: Family Vacation" airs Thursdays at 8 p.m. on MTV.