@MrMcNasty
It depends. Usually assassins tend to be glass cannons/ fragile speedsters who try to kill the target before they are detected or deal a ton of damage with a single attack that has a large amount of cooldown time and are extremely vulnerable if they fail to nag the the kill.
He is deliberately misusing the tale he is telling. The twins he is talking about had a special bond, while the princess has only met the twin after the tale is told.
I bet you that the guy she is running away with is the same one she was to marry.
Also, did anyone notice he had the same name as said family? Is that because they had same name in the original language, or are they spelled differently but are pronounced the same?