It's a wedding. It will cost half her guests who don't live nearby the best part of £200 to get a hotel and pay for travel.
On top of this she wants them to spend another £120 on a suit for the blokes and probably about £80 on a dress for the women plus £30 for a matching pair of shoes. I won't mention handbags and I'm being conservative on the amounts there really.
So we are up £410 for a couple.
Then she's having a hen do which is costing £300.
So we are up to £710.
Let's add a couple of kids. £50 each on an outfit. £810.
Then your drinks on the night. Let's make that up to £900.
Oh shit you've not got your wedding gift yet.
We are at a grand. Quite easily without thinking.
And she's wondering why on earth people are getting upset with her ridiculous theme.
Let her get on with it. You know everyone who goes will have a crappy day because there will be some drama over why it's not perfect. And it'll probably be all your fault or there will be a massive tantrum cos great Aunt Bessie turned up in her usual blue wedding outfit because she didn't realise that the bride was mad and that ridiculous.
Your Mum and Dad are going to have a fab day. Tbh, they need to be the ones to glad her a verbal slap and tell her to belt up.
Honestly, maybe telling her to fuck off etc werent the best thing you could have done. But you have probably done yourself a favour here because it's now not your drama and you don't have to spend a fortune on crap.
Console yourself that her wedding photos are going to age so badly or look ridiculous.
She will be wanting something really tasteful in her photos. She's more likely to end up with a bunch of garish colours that look terrible anyway. And she'll have a wobbler because they aren't the right shade.
Ironically brown and grey would work. Which makes the drama even more hilarious.