Life had other plans

Remember when we were children? At five, you were just one year older but you were already my knight in shining armour. We shared a first kiss at eight, well, it was bit sloppy, but we were trying. We were holding hands at twelve, and at sixteen, it was you and I against the whole world. You and I always forever.
Then you left for the big city. You said to choose my wedding dress, we'll marry in the spring.
The dress has yellowed with time, my hair has become silver, you never came back but I've never forgotten you.