Her friend, who helped her to go to the police, then to the office of National MP Tau Henare so Prime Minister John Key could be informed, last night said she was stressed, needed "time out" and no longer wanted the matter investigated.
The friend said the Auckland-based Korean businesswoman yesterday told police she wanted to withdraw the complaint.
"She is saying: `Hey, I want out'.
"He [Dr Worth] has lost his place in the Parliament, and that is enough."
Police would not comment last night.
Dr Worth's lawyer, Paul Dacre, said police had not contacted them about the woman withdrawing her complaint.
Dr Worth resigned as a minister when confronted by Mr Key over the allegation last month, staving off being sacked.
He subsequently resigned from Parliament, but denied committing any crime and said "my conscience is clear".
Mr Key has refused to say what caused him to lose confidence in Dr Worth.
He would not comment last night.
The woman's friend has previously said Dr Worth invited her to Parliament, hosted her in his ministerial capacity, then took her to a hotel room.
She and Dr Worth had breakfast together in the morning before she returned to Auckland, the friend said.
The incident happened in early March, but the woman did not go to police until late May.
After the Korean woman's complaint became public, Dr Worth faced a separate allegation from Labour that he bombarded another woman, Neelam Choudary, with sleazy texts.
Mrs Choudary was revealed as a party stalwart whose husband was a convicted immigration fraud.
She has so far not produced any texts as evidence.
Labour dropped the issue when Dr Worth quit as an MP.
A list MP, Dr Worth was replaced by Cam Calder, who gave his maiden speech in Parliament yesterday.
The complaints
Allegation 1: A Korean businesswoman complained to police about a sexual encounter in a Wellington hotel room.
Her friend says she now wants to withdraw her complaint.
Allegation 2: Neelam Choudary, a Labour activist, complained of receiving sleazy texts.
No texts were produced, and Labour gave up on her complaint.
