If this Bachelor preview is any indication, tonight’s episode is going to be tense.

Nick Viall gets a surprise visit from his ex Andi Dorfman following his four hometown dates — and the former Bachelorette did not hold back in a new teaser clip.

MORE: Lauren Bushnell Hints Josh Murray Called “Paps” on Date With Amanda Stanton!

Calling out the 36-year-old reality star for slut-shaming her on national television in 2014, Andi, 29, asks if he regrets his actions.

https://www.youtube.com/watch?v=ydYLaBv-7g8

“Do you look back and you’re like damn I shouldn’t have said, ‘Why would you make love to me if you weren’t in love with me?'” she asks a clearly uncomfortable Nick, who avoids the question.

Andi’s appearance on the reality dating competition is definitely a shock to viewers, and former Bachelor star Ashley Iaconetti, who revealed she was blindsided by her cameo.

MORE: Nick Viall Had A “Complete Breakdown” While Filming ‘The Bachelor’ Finale

“I was actually at lunch with Andi the month that this happened and she was like, ‘There’s talk about me making an appearance, but I would never, ever do it,'” she told Access Hollywood before adding that Andi is not romantically interested in Nick.

“No, they definitely don’t have feelings like that for each other, but they definitely both respect each other and they remained relatively friendly after her season… as in they’d text every now and then.”

Andi had her revenge on Nick in her memoir, where she called sex with the reality star “cringe-worthy.”

During the very awkward exchange, Nick also reveals to Andi that he might walk away from the show single — again!

“You dumped me on national television,” Nick says, with Andi responding, “But now you’re dumping 29 girls.”

“I know, maybe 30,” Nick adds to a visibly stunned Andi.

We can’t wait to watch! For more behind-the-scenes photos of this season of The Bachelor, click through the gallery below!