Marionette

Petunia's justifications as to why she hated her younger sister and her son.

When Lucius is killed, Draco can't help but feel it's all his fault.

In first year, Harry rejected Draco Malfoy's offer of friendship. Late at night, five years after that has happened, Harry wakes up Ron to wonder about what if he'd said yes. Ron ends up having a very strange dream about the differences in his life as well as Harry's if he'd taken his hand in friendship.