Don't worry, you have him already, all the other girls have to remove you from his heart first before they have a chance.
You know, go old school, now that you are grounded, ever time you think about him, write it on a piece of paper. I mean time, date and how you are actually feeling. So the day you see him for the first time you give him this paper. This will show him that for every moment, even when you were alone, you were thinking about him.