How do you know when you love someone? There's no answer.
Gradually, though, you begin to see patterns... Your life changing for that person. You see them when you sleep, you think about them when you try to focus, and you miss them when they're next to you.
When you miss someone, nights alone become time for tears instead of rest.
But when you love someone, you smile at the thought of them, and know that you'd do anything for them.
The common misconception is that love and missing someone are the same thing.
I can differentiate; because when we were together I missed you. But now, more than ever, I know that I love you.