Then ends up wearing the same outfit as Ashleigh !!!

I watched the video again to make sure and can only presume it is either that she thinks she looks better in it than Ashleigh or it was a spoiler (like two people turning up to a wedding or event in the same outfit).

It didn't work, whatever the reason.

I believe she refused to wear the original outfit and BB probably changed it for their Golden Girl.

She threw a strop over the original outfit. They left this out the highlights.

That was the couples party, not the disco party.