Jeremy Corbyn has declined to say his Your Party co-founder Zarah Sultana is a friend as supporters of the new grouping gather in Liverpool.
Speaking to Sky News on the eve of the conference, Mr Corbyn acknowledged "stresses and strains" in the set up of the party but said it had become "a lot better in the last few days and weeks and we're going to get through this weekend".
The former Labour leader has publicly clashed with Ms Sultana, the MP for Coventry South, over the launch and structure of the new party.
Asked if they were friends, Mr Corbyn said were "colleagues in parliament, and we obviously communicate and so on".
The pair appeared at separate events on the eve of the party's inaugural gathering.
Ms Sultana had previously claimed she was being "sidelined" by a "sexist boys' club" within the fledgling party.
Mr Corbyn said her comments were an "unfortunate choice of words" but added that he had been more involved in the organisation of the conference than she had.
The Islington North MP also said that Your Party was still waiting for Ms Sultana to transfer all of the funds she had raised from supporters.
"Obviously having money up front for a conference is a big help," he said.
Ms Sultana has insisted she is transferring the donations in stages.
The weekend gathering in Liverpool will see supporters choose between four options for a permanent party name: Your Party, Our Party, Popular Alliance, For the Many.
The preferred choice of Ms Sultana - The Left - did not make the ballot.
Similarly, the Coventry MP had said she favoured a co-leader approach, but members will only be able to pick between single leadership or collective leadership models.
Speaking at her own pre-conference rally, Ms Sultana blamed a "nameless, faceless bureaucrat" for restricting the choices.
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The meeting also risked being disrupted by a series of member expulsions. One of those ejected, Lewis Nielsen, accused a "clique" of trying to "take over".
Your Party sources said expulsions related to members of the Socialist Workers Party and that holding another national party membership was not allowed.
Ms Sultana blamed a "culture of paranoia at the top" and said she believed the same people who had been briefing against her were now also expelling members.
Mr Corbyn will open the conference on Saturday, while the results of the main decision-making votes will be announced on Sunday.
(c) Sky News 2025: Jeremy Corbyn declines to call Zarah Sultana a friend as Your Party holds first conference
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