In the arena there we 2 doors one with a lion in it and the other with a women in it. If you were caught doing something bad you would be thrown in here. If you pick the one with the lion you were guilty and if you chose the women then you were no guilty but if you chose the women you were instantly married it didn't matter if you were already married.
The king found the princes and her lover and he didn't like it.
So the king put the princess lover in the arena to pick a door.
The Princess lover turns and looks at the princess.
The princess knows what door the Lady is behind and which one the lion is behind and the princess doesn't like the lady behind the door. When the princess lover looked back at her she hit the wall to on her right.