The Australian politician, who took part in the reality television series alongside model Cohen, said that he would not acknowledge her because of past reports of her being xenophobic and homophobic.
When one of the presenters on Nova FM described Cohen as "lovely", Hanson said: "There's another side to Didier. You can imagine that Wendell Sailor or Deni Hines [would] have an opinion of me based on what the media [has said]... that I'm racist.
"[But] Deni said [to me], 'It's not true what they said about you, that's you don't like black people and you won't work with them'. I'm not racist and I will help anyone. Didier, he formed this opinion of me and he wouldn't talk to me. He doesn't even damn well know me."
Hanson then went on to controversially admit that she is "not one for gay marriages", saying: "I'm one for mum, dad and the children. What people do behind closed doors, I don't care. They don't lose my respect for who they are and what they do. But I'm brought up on traditional values."
Recently eliminated contestant Hines recently revealed that she was pleasantly surprised when she met Hanson, while Jesinta Campbell described the politician as "amazing".