Why Do I Feel Like This?

I have no idea why i think of him so much. I always find myself looking at him and being hypnotized by his smile every sight of him reminds me painfully of everything I had one day and wished on a star that I could have back the next.I try not to make it so obvious that i still have feelings for him but i cant help but smile all the time when i'm around him and pretend that I am doing fine without hearing his voice everynight on the phone.I still dont get why he gave me up everyopne of my friends said that we were the best couple.I know that his looks dont attract me to him its his smile and personality and his laugh that make me miss him most. I wish that I could still go to him for warnth when im cold or when I'm sad he can make me happy and when I cry I could go to him for comfort but the only thing ive ben crying about is not having him.