The Teen Mom got so worked up during a row with Natasha Hamilton last night that Big Brother called her to the Diary Room to make her calm down.
In scenes to air tonight, Bobby suggests: "It can't be the American culture that makes someone behave like that. It's something that has happened. It's pain in her life that leads her to defend herself with such venom.
"She says vile things because that's her defence."
Later on, Farrah tells James Hill, Austin Armacost, Jenna Jameson and Scoop that she has been having therapy to change the cycle of destruction handed down from her parents.
CBB tonights tonight at 9pm on Channel 5 with eviction two.