Unfaithfully Yours (Re-Written)

Draco had always believed he had it all, yet there was always an emptiness inside. What happens when that emptiness is consumed by a seductive fire? Do you extinguish the flames before they go out of control or do you take a chance and get burned? AU during HBP and DH. Draco/OC. Small Ron/Hermoine. Warning: Sexual Content and Language.