I'm so stupid.......

Can someone tell me why?
Although I know me and you will not happend, but why am I still have faith in you........
Whenever I see you, I just pretend i didn't see you...... Whenever I didn't see you, I feel like I want see you, and I miss you very much........ Haiz...... Maybe, I'm too stupid with it.........
Just like to day, I know you were there, but I just don't dare to face you, bcz I know whenever did I see or talk to you, the answer is still the SAME.........

I really don't know what should I do to you, should I just let it go or should I continue what am I doing........