I was MOH to a dear, much loved and good-hearted friend. In the months leading up to her wedding, her usually very nice fiancé had been behaving in a strange manner and it was fairly apparent that he was...up to something. She kept making excuses for him - none so blind as those who can't see, etc.
At 2am the night before the wedding, which bride and groom were spending apart, she receives an email from their childminder...who tells her that she has been having an affair with the groom, and insists that he doesn't love her and that she shouldn't marry him.
Bride is initially furious - not at the groom, but at the childminder for ruining the big day. The heart breaking upset at the betrayal and the hysteria and tears come at 4am.
By 6am there are angry phone calls, by 9am there are raised voices, remonstrations and recriminations in the car park.
By 10am the bride promises to remove the groom's genitals with a rusty penknife if he ever cheats on her again, and returns to the bridal suite for hair and make-up.
By 11am, the bride and groom are smiling wanly in front of a registrar reading their vows, and there are only a few people in the world that know anything at all. I have watched the whole thing unfold, open-mouthed, from the early hours.
Yes, if you're wondering, I did attempt to intervene - gently, and respectfully, as I wasn't the one marrying the guy. She's my best friend, and the kindest woman in the world, and I hated that she might be tied to a philandering nobhead all of her life. But she absolutely flew to his (and her own) defence, more angry than I'd ever seen her, and said she was getting married and I couldn't stop her.
So I watched her marry him, and they are still together several years later, fairly happy most of the time, and to my knowledge he never strayed again...