It all began with Hussain and Isabella Farnese locking horns. Earlier in the day, he had told Brooke Berry he felt betrayed by her closeness to his 'rival' Lewis Flanagan.
Isabella later confronted him over his actions against her: "You are being terribly out of order. I don't know what you're trying to do to me. You're making my time in this house f**king horrible. You've just created so much drama."
But Hussain responded: "If you respect our friendship, you don't roll with my opposition."
Hussain then started to kick off at his Lewis, who didn't respond to his remarks.
"You're a coward, you ain't going to say f**k all, you're a pussy," Hussain goaded.
Instead, Zoe got involved and defended Lewis, snapping at Hussain: "You're a dickhead. You're a d**k."
Hussain continued at Lewis and now Zoe: "Fight his battle, fight his battle! He's letting her fight his battle, he's a coward."
Things began to get heated between Zoe and Hussain, resulting in Big Brother splitting the pair up.
Taken to the bedroom, Hussain ranted: "F**k's sake. He's [Lewis] a f**king d**k. He's a f**king coward.
"I can't understand why people see this. He's a f**king little coward."
Meanwhile, Zoe was taken to the Diary Room.
"Big Brother will not tolerate any threats of violence or aggressive behaviour," Big Brother told her.
Zoe responded: "Hussain thinks he's a big man but he's not. F**king little p***k. Who does he think he is? He speaks to Isabella like a piece of s**t.
"He's just been goading Lewis, trying to get a reaction out of him. He's speaking to me like a piece of s**t.
"I'm not having that. C**t. Who does he think he is? What a f**king prick. I'm f**king FUMING!"
— sᴜᴘᴇʀ ᴛᴠ (@superTV247) October 18, 2018
Elsewhere tonight the question of who had secretly killer nominated Lewis after winning the mystery box in last Sunday's Big Coin auction caused tension. Housemates were still unaware it was Hussain, with Sian instead getting the blame.
In this evening's episode, she defended herself: "Basically I felt like everybody thought I had the box. I would never do that. I would never do that. I bid nothing."
In the aftermath of his row with Zoe, Hussain revealed to Akeem he was the one with the box.
Big Brother airs Sunday-Fridays at 10PM on Channel 5. Hussain, Lewis and Tomasz currently face the next eviction on Friday night.