'90 Day Fiancé' star Bini's sister calls his partner Ari 'evil' in a sneak peek from the upcoming episode

• Biniyam "Bini" Shibre's sister Mimi calls Ariela "Ari" Weinberg "evil" in a clip from Sunday's upcoming episode.
• Before leaving for the US, Ari wouldn't let the aunts say goodbye to their son, Avi.

Ariela "Ari" Weinberg and Biniyam "Bini" Shibre leave Ethiopia for the US on the upcoming Sunday, May 8 episode of "90 Day Fiancé." We see their goodbye to Bini's family is more hostile than tearful in an exclusive sneak peek.

Bini's sisters, Mimi and Wish, meet the couple at the airport to say goodbye to Bini hours after Wish threw wine in Ari's face — but they have stipulations to their visit.

Wish says in the clip below that they came to the airport to tell "Bini goodbye for the last time."

"We also want to say bye to Avi," she continues, referring to Ari and Bini's young son. "But it's better to say goodbye to him alone."

Bini only told his family he was moving to the US on a 90-day visa at a music video release party the night before his trip to New Jersey. His sisters were understandably upset about the late notice but blamed Ari for not telling them because she is their family, too.

When Ari said they hadn't treated her well while she was in Ethiopia and that she didn't owe them anything because it was Bini she was marrying, Wish sent wine flying.

Per the clip below, Wish shows up at the airport expecting grace from Ari that the young mother is not ready to give.

"Is she willing to let us kiss the child?" one of the sisters asks Bini. When he goes to the van where Ari is sitting with their son Avi to ask to have him, Ari immediately gets defensive.

"It's cold outside, just leave him," she tells her fiancé.

"It's cold outside. If they're not so stupid they can come and see him," Ari tells a companion. "But their behavior is really stupid."

"This is a shame," Wish tells cameras after Ari refuses to let her see her nephew. "He's like our kid, so that hurt. That hurt a lot."

"What do we feel?" the normally quiet Mimi asks the camera rhetorically. "We feel she is evil."

Watch the tense goodbye in the clip below.

"90 Day Fiancé" airs Sundays at 8 p.m. ET on TLC.