The day was too nice for your liking.
The sky was blue, and the clouds were white, and the breeze flowed softly through the air, and the lake was as smooth as glass, and you'd never wished harder in your life that it was pounding rain, and the wind whistled, and lightning flashed, and thunder boomed. It would be so much more coordinated with the flurry of emotions and thoughts that were rolling throughout your body, and the pain that attacked your heart with all it had.
He said, "We can't be together," but you knew he meant, I just want you to be safe.
You said, "It's for some stupid, noble reason, isn't it?" but what you meant was, I love how you always think of others before yourself.
He said, "I've got to do things alone now," but you knew he meant, There's nobody left to help me. He said, "Think how much danger you'll be in if we keep this up," but you knew he meant, I couldn't stand it if I lost you.
You said, "What if I don't care?" but you meant, I'd die for you without a second thought.
He said, "How do you think I'd feel if this was your funeral… and it was my fault…" but you knew he meant, I'm not going to let anyone else die for me if I have anything to say about it.
You said, "I never really gave up on you," but you meant, I always loved you. And I always will.
He said, "I just wish I'd asked you sooner," but you knew he meant, I'm sorry for this. He said, "We could've had ages… months… years maybe," but you knew he meant, I'll come back to you. I promise. We can still have years.
You said, "I can't say I'm surprised," but you meant, I knew this was coming and I love you even more for it. You said, "I knew this would happen in the end," but you meant, I knew this was too good to last, but I love you anyway. You said, "I knew you wouldn't be happy unless you were hunting Voldemort," but you meant, I know you have to avenge them – everyone – your parents, Cedric, Sirius, and now Dumbledore. Me. You said, "Maybe that's why I like you so much," but you meant, I love you with all of my heart and soul.
He was gone the next moment, and you found yourself wishing you had made your brain say what your heart told it to. You found yourself wishing you had told him what you meant.
I love you. If you don't come back to me… I won't ever be whole again.