Angelina Pivarnick's psychic grandmother is making her reality TV debut.
In PEOPLE's exclusive sneak peek at Thursday's episode of Jersey Shore: Family Vacation, the cast convenes at Angelina's wedding venue for the rehearsal dinner. Angelina is still upstairs getting ready when bridesmaids Jenni "JWoww" Farley, Nicole "Snooki" Polizzi and Deena Cortese arrive, but some of her family members — including her grandmother, also named Angelina — are on hand to welcome them.
"I am so excited to see Grandma Angelina," Jenni says in the sneak peek. "All I know is I need to befriend her — like, we need to be friends. She concerns me, a little bit."
But Jenni's plans to buddy up to Grandma Angelina quickly fall flat. She warmly greets Deena and Nicole with hugs, but when Jenni tries to say hello, the mood immediately shifts. Grandma Angelina ignores her, and an awkward silence fills the room.
"I don't know what's going with Angelina's grandma," Jenni admits in a confessional. "For some reason, I feel like she doesn't like me."
The girls escape to the bar — but not before Grandma Angelina shoots Jenni one last threatening look.
"What the f---?" Jenni whispers as she scurries away. "I feel like I'm being watched. I need to hide. Like, her grandma, she's going put a f---ing spell on us."
"That look?" she adds. "Yeah, that look was death."
Jersey Shore: Family Vacation airs Thursdays (8 p.m. ET) on MTV.