Luna married a muggle cryptozoologist and they will spend their lives going on awesome adventures and investigating creatures no one else believes exist, dammit.

Oh, I like that!

And regardless of wartime romances (which I buy, sometimes) and childhood romances (which I also sometimes buy), I adore Ron and Hermione's dynamic, so THEY were the pairing that I believe (and enjoy believing) got together and stuck it out.

When I'm not pining over how great Krum and Hermione would have been.