The duo, who have previously flirted with each other on the show, had a war of words following an argument about Danica allegedly laughing at fellow housemate Ashley McKenzie.
Danica has accused The Situation of being "disgusting" in his treatment of her, complaining: "You're always, always nitpicking at me and you have no right.
"You're so petty, it's like being with a 16-year-old boy with you, that's what it's like. You are so immature.
"You sit there like an immature 17-year-old going, 'Who do you like more, me or Prince?'"
The Situation hit back, branding the model "one of the fakest people [he's] ever met".
Danica claimed that the Jersey Shore star was "jealous" of Prince Lorenzo and claimed that he was taking out his "insecurities" on her.
The Situation and Danica are up for eviction this week alongside Rhian Sugden and Samantha Brick.
Celebrity Big Brother continues every night on Channel 5.
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