Braiding is a big thing for dwarves, even if their lovers are elves. (OR Kili really likes braiding Tauriel's hair, but is a total dork when it comes to marriage proposals)
In which Fili helps Kili and Tauriel because they are both MASSIVE DORKS.
Kili and Tauriel reflect before the battle, and make a decision.
In which Kili is a little hopeless at wooing Tauriel and Fili steps in because he's a great big brother.