Snooki & Jionni LaValle Cheating Scandal Betrayal? 'Jersey Shore' Baby Mama SLAMS Alexa Waldman Hook-Up Rumors On Twitter Amid Wedding Bliss

"Jersey Shore" starlet Nicole "Snooki" Polizzi is extremely happy with her new family life - why can't people just accept that!?

And no - hubby Jionni LaValle is NOT cheating!

The seedy gossip tabloid InTouch claims that LaValle tried "hooking-up" with a chick named Alexa Waldman... while celebrating his birthday in Florida LAST MARCH!

Yup - apparently this "heavy flirtation" took place about a year ago.

Waldman now reveals the "juicy" details:

"We were dancing together and flirting, and then he asked me for my number. As soon as we left the club, he started texting me, asking me to come back to the boat they were partying on. I didn't. It was clear he wanted more." 

Following the party in Fort Lauderdale, LaValle supposedly tried "hooking up" with Waldman in her hotel room. But she wasn't interested. "He was ready to cheat," she insists. "I wanted no part of it." 

Although they just got married back in November, LaValle clearly shows signs of betrayal. An alleged insider explains that their marriage is already on the rocks:

"They've been having problems for a while... They fight about everything from the kids to what to have for dinner... She and Jionni have been getting into blowout fights for years. No one thought they'd last this long." 

The former party girl-turned-mama of two was not amused with such shady accusations. Snooki later tweeted:

@snooki: "FYI,this BS story intouch is posting is a lie & 'told' LAST summer LOL. Lost all respect for that magazine. My man ain't goin nowhere #shady."

Amen! Seriously... this supposedly happened an entire year ago? Crazy.

Now we're just waiting for BFF JWoww to speak her mind...

The happy couple has two youngins' together - Lorenzo Dominic LaValle and Giovanna Marie LaValle.

The season finale of "Snooki & JWoww" airs on January 21.