you said you'd be here forever.
you said you'd never let me go.
you said you will always love me.

well it's been a year and you're not here.
it's been a year and you have let me go.
it's been a year and you don't love me.

forever means however long I want to stay in your life.
I'll never let you go means I'll keep you until I find some one better.
always means temporarily
and I love you means nothing.