Genuinely astonished someone has never heard of this, especially someone my age, just goes to show.
Anyway to clarify, it is deeply frowned upon to wear mainly white or cream to someone’s wedding as it is held as traditionally the brides signature colour. It’s a very very long standing etiquette, based in respect to allow the bride to fully stand out on her special day,
it’s batshit the op is arguing that dress is not mainly cream , it clearly is. It’s also batshit she keeps changing her story, about the bride having seen it or not, as apparently it’s outing, it’s also batshit she keeps claiming they randomly had another dress very similar just hanging up, no one believes that.
so they have seen the dress, it’s mainly cream/white, the bride has reasonably asked her not to wear it, which is very common and normal and the op is now pretending it’s not what it is, and it’s apparently unreasonable as she sees this as making demands on what she wears, you’d not think there were many many other colours to pick from, but hey as she had to cancel her own wedding she should get to attend dressed like a bride,