Basically, they could’ve done anything to stop Marian and Robin leaving. 🙂
What I mean, though, about the Kristoph thing, is that something could’ve happened to him right before the wedding. I’m going to give a spoiler to another TV show here, so, spoilers.
In the Scandal mid-season finale, Olivia goes missing while Jake is doing something else.
We saw Elsa and Anna leave together, but I like to think they go into the wedding ceremony and just be confused because Kristoph’s not there, and been taken or something. But yeah, they probably did just leave it as a happy ending. 🙂