Jennifer Aydin of "Real Housewives of New Jersey" is not the one to mess with.

In November, former "Real Housewives of New York City" star Bethenny Frankel thew shade at Jennifer in the comments section of an Instagram post, which didn't go over too well. In the social media post, the "RHONJ" star is seen calling herself a comedian, to which Bethenny commented, "Said nobody funny about themselves ever."

"Well, I guess there’s a first time for everything! And you’re so right! - the things I say? Said nobody Ever," Jennifer replied followed by the shoulder-shrugging emoji.

That seemed to be the end of their squabble, that is, until Jennifer was asked about the incident during her appearance on the Dec. 4 episode of "Watch What Happens Live with Andy Cohen." The 42-year-old doubled-down on what she thought about the shade former "The Real Housewives of New York City" star Bethenny Frankel threw at her a few weeks prior and added some "fighting words," as Andy put it.

Based on that clip alone, it's easy to see why Jennifer bumps heads with her "RHONJ" co-star Melissa Gorga.

"Jennifer speaks out of both sides of her mouth. She just spews things sometimes that are just so rude and untasteful," Melissa dished about why she chooses to keep her distance.

"When she’s sitting there saying the most ridiculous things that make no sense and then sometimes you put a cocktail in the girl and she just starts, she blows," the mother of three continued. "And I will not stand for, I do not let her go off on her little rants and say things that made no sense. I just lose it with her. So, that’s that."

"The Real Housewives of New Jersey" airs Wednesday at 8 p.m. on Bravo.

RHONJ Jennifer Aydin
Jennifer Aydin is pictured in "The Real Housewives of New Jersey" Season 10. Greg Endries/Bravo