I’d tend to agree looking at the pictures, that the woman may be related to the bride... and the bride may have been in the know.
However social media is not about facts, its about folks looking for a reason to be outraged or voice their opinion about things they know little to nothing about.
People watch tv and go on the internet for (mostly) two reasons: to feel uplifted by a positive story, or to feel superior due to someone else’s misfortune. And people use any means necessary to bring down famous/rich people.