In a statement, Channel 5 said: "Roxanne has chose to leave the BB House".
'She has now been reunited with her fiancé and family and thanks everyone for their support during her time in the show'.
Celebrity Big Brother has released a teaser for tonight's episode - which is set to include Roxanne Pallett's sudden departure.
He said: "I want you to know from the bottom of my heart I was showing my affection".
The incident allegedly took place in the kitchen of the Big Brother house.
"Maybe it came across the wrong way".
On the Channel 5 show, Ben Jardine - who was evicted last night - told Ms Pallett he loved her.
Ryan was keen to make amends with Roxanne however, and he tearfully apologised and said: "I am not the person you felt was treating you that way".
An emotional Roxanne replied: "I'm not questioning your integrity".
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In the chilling seven second CCTV video , an unidentified woman approaches the doorway. "We were dead asleep in our beds". Another woman in Toronto, Canada was also included on the video , was seen on video footage ringing a doorbell of a home.
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The Married At First Sight star had grown close to Pallett while in the house, but he told host Emma Willis that he felt "played" by her.
Explaining what happened, he said: 'I'm saying to her, "What did he do?"
'I trusted Roxy and trusted what she said.
Over the past week, Ben has been flirting up a storm with Roxanne - whose tactile friendship went one step further on Monday night when he pressed her up against a wall and kissed her on the neck.
Charley Webb, who plays Debbie Dingle in the ITV soap told her 434,000 Twitter followers: "It's worrying that someone is allowed to say that about someone and they're taking it seriously".
"I do feel a little bit of a mug sat here right now".
"I think she's a lovely girl, that's all I can say".
And the pair were seen making up on Friday's show as Ryan said he did not intend to upset her.
Celebrity Big Brother continues on Channel 5.