Fix You - Dramione

The war has ended and the Golden Trio has come back to Hogwarts to complete there 7th year, since they missed it while finding Horcruxes in their battle against the Dark Lord.
When the trio comes back, joining in the year with Ginny, they see some familiar faces. Such as Neville, Luna, Dean, Seamus and many others from all houses... Even Slytherin... But what if Draco Malfoy comes back for his 7th year, as Head Boy? Surely Professor McGonagall has made a mistake! But no, no she hasn't...