Apparently the model, 29, had a relationship with star Will.i.amlast summer when he was in the UK recording The Voice.
A source told a UK newspaper: “They were dating for six months and actually never officially called time on their relationship. Will met Casey in a nightclub and they had a series of intimate dates.”
According to the source, the reason Casey has failed to mention her ‘relationship’ with the Black Eyed Peas singer while in the house is because she knows what a private a person he is.
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“She has been very careful not to name drop Will in the BB house because she is aware of how much he doesn’t like to talk about his love life.
“She’s also hoping they can pick up where they left off. Will is keen to see her again too.”
Although she is reportedly hoping to rekindle her romance with Will.i.am, Casey has been talking openly in the house about her feelings for Blue singer Lee.
Things didn’t work out for her though, after Lee started getting closer to fellow contestant Jasmine Waltz.
During a conversation with Lee on last night’s show, Casey said: “I never once sat the dairy room and slagged you off. I might have said that I was hurt and upset but I never once said a bad word about you.”