The duo, who had previously flirted on the reality show, had a huge row earlier this week and The Situation branded the lingerie model "fake".
According to the Daily Star, the reality TV personality went one stage further later on and threatened to "f**king kill someone" because he was so angry about the incident.
Danica had described The Situation as "acting like a 16-year-old" and also told him that he needed to "grow some balls".
Celebrity Big Brother continues tonight on Channel 5.
The Situation, Danica, Rhian Sugden and Samantha Brick face possible eviction from the reality show this evening.
Celebrity Big Brother - Latest pictures:
Copyright: Channel 5