It really does depend on what you said in the first place as that will give more context to the story....
Everyone has a different way of taking things that are said to them whether they are intended as a complement or not. Unfortunately drink tends to blow things out of proportion and it seems like this *may* have happened here.
All you can do is apologise and reiterate that there was no malice etc intended. That you were trying to pay a compliment but that you understand you upset her and for that you are sorry.
At the end of the day none of this would have happened if you hadn't said something that's why I feel you need to be the one to apologise first and hopefully the others will too.
Hope you're okay. Enjoy the run up to your wedding
I'm sure everything will sort itself out x