This isn't Goodbye
Draco Obliviates Hermione before he goes to open the Vanishing Cabinet and kill Dumbledore. This was his contingency plan. Just in case the Dark Lord takes prisoners. He couldn't take any chances. Her memories would threaten him and his family.
He finds a hastily scribbled note and creased picture inside his Slytherin pillowcase. The photograph had been folded and unfolded so many times. It was from several months ago from when they snuck out. She enchanted a camera to take a picture of them. It wasn't very good. Blurry. Could barely tell it was them.
The stupid bint thought he was redeemable to the very end.
He wipes his eyes, only to realize he’s been crying.
[Images: Draco and Hermione dancing in the streets late at night. Note reads, "Please don't forget me and all the things we did."]