When "Grimm" season 4 fall finale aired, it left fans with so many cliffhangers. But there's one in particular that stood out from the rest and that is Juliette's transformation into a Hexenbeist. Juliette hasn't told her boyfriend Nick about it yet and actress Bitsie Tullock shares why. 

For the past three and a half seasons, Nick and Juliette have been inseparable. Their bond and relationship has gotten stronger, which begs the question: "Will Juliette, being a Hexenbeist, destroy what they have?" 

Tulloch had a chat with Zap2it, and there she shared the dilemma that Juliette is facing. She said: 

"[Becoming a Hexenbiest] is the last thing in the world she wants. It's hard enough for her being as involved as she is with the Grimm stuff. She's the kind of Wesen, or witch rather, that her boyfriend's fate is to kill them, so that's kind of scary and she's obviously going to try to hide it from him while she figures out how to correct it." 

For now, Juliette will try to hide it from Nick, but will she be able to? Tullock said that she, too, is wondering if Juliette can pull it off since she and Nick are very open and honest with each other. Nonetheless, she shared that Juliette is at an emotional high right now. 

"I think it's honestly just too shocking and too weird for her, and she's scared. She doesn't know. This isn't like anything, and they've dealt with so much, but this is not like anything they've ever gone through," Tulloch explained. 

Apart from dealing with the transformation, Juliette also has to deal with the woman responsible for it all, Adalind. Definitely, Juliette will make Adalind know about her anger. 

"There is a cat fight that is going to happen this season, and it is going to be epic. If not the biggest fight so far on any 'Grimm' episode, it's up there. [Juliette] just wants to kill [Adalind] at this point. Literally she wants to kill her," she shared. 

Meanwhile, the next episode titled "Wesenrein" is a two-part episode that focuses on Monroe and Rosalee and, of course, Juliette. According to Dread Central, there will be threats against Monroe and Rosalee's marriage, while Nick and Wu will try to look for answers as Juliette deals with her transformation. 

"Grimm" season 4 returns on Jan. 9.