According to online court records, the businesswoman, 32, was taken into custody on Thursday, May 16, in Las Vegas and she is being held on $3,000 bond.
A source exclusively told Us Weekly in January that Jen and Ronnie are not together and he is currently in Kentucky.
The insider revealed that the pair, who share a daughter, Ariana, 13-month-old, got split again after a nasty fight of New Year’s Eve.
The source said at the time, "They fight — a lot. They have a very volatile relationship. It’s either great or the total opposite."
The Jersey Shore: Family Vacation actor, 33, filed a police report against his estranged girlfriend on January 3, claiming that she threw a glass ashtray at him.
The duo was reportedly at Las Vegas' Hustler Club when the altercation occurred.
In photos of the injured actor obtained, he had a swollen nose, a split lip, gashes on his nose and forehead. A bruise also appeared above his eyebrow.
For more updates, stay tuned to Frostsnow.