I mean, come on. You've trekked all the way to a remoteish Greek island for your darling son/nephew/cousin's wedding and then the bride decided she doesn't fancy marriage, really. And then her mum marries a man who might be the bride's dad due to a spur of the moment proposal.
Yes, you still get good scenery, a nice meal and too many lots of songs, but still. You would be a bit annoyed, right?