The 25-year-old confessed that she's an alcoholic, during an argument with US star Austin Armacost.
Austin, 27, fumed at former X Factor star Chloe when she failed to join the other housemates in raising a toast for his late brother.
He said: "It's just ironic that the other day you couldn't get out of bed because you couldn't be around alcohol and now you are running to the fridge to grab booze for Stevi."
"It's really f***** up you did that Chloe. My brother is dead and you didn't come together with the rest of the house to join in the toast for a few minutes. I feel extremely disappointed and disrespected."
But Chloe refused to be attacked. She hit back: "I am addicted to alcohol, if I smell it I can go nuts. I could get Stevi a drink as it wasn't open."
Despite Chloe's explanation, Austin was still unimpressed. He raged to the other housemates, suggesting her excuse was a cop-out.
Attempting to defend herself further, Chloe tried to explain to Austin what she's going through.
She said: "I was feeling horrible all day and I really wanted to drink. It's like a manic depressive, some days you just want to stay in bed. This is the disease I have, alcoholism. I'm a bit of a mess really."
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