The Marauders plan to play a trick on Snape, but they need someone that he trusts for it to work. Who else can they turn to besides Lily?
Dumbledore visits Grindelwald to convince him to help him deal with a greater threat. But after all that's happened, can they still consider themselves friends?
Harry Potter does not travel back into the past to keep anyone alive. He certainly doesn't do it so he can fall in love with Voldemort. He never wanted to time travel in the first place but when he does, it's hard not to interfere.
There are some things that can't be given, only taken. There are some things that are not treasured, but destroyed. Unfortunately for Harry Potter, Voldemort has no intention of letting him go. Ever.
Right before the Final Battle and the destruction or salvation of everything Harry Potter knows, the Golden Trio get together one last time. There are some things you only tell the people you love when you're about to die. Complete crack.
Ginny has only ever wanted, needed, loved one person. Harry Potter. So, shouldn't he only look at her too? If he doesn't, then Ginny will make him see her. Only her...
Maybe Muggles are stronger and smarter than you think they are. Maybe wizards are not as all-powerful as you believe. And maybe people really do notice when someone walks straight through a wall.