...:wut:
You make it seem as if a marriage of convenience would be an unthinkable and unlikely event, which given that they live in a war-torn shinobi society is just.... odd.
Consider issues like; legacy/techniques/clan, to establish alliances and strength the blood line etc - you'd think it would be somewhat normal for the majority of marriages to not be a 'love match'.
Especially in established Clans.
In fact, the more I think on the more like choosing your own bride seems like a luxury ill afforded.
Think, Game of Thrones, if you will.