why?

I see you all the time
All I can give is a sad smile
Its been hard to get an opinion of you in the last little while

I hear rumors all around,
I'm being more careful than ever
I may not look it,
But at times I'm pretty clever

I see through lies easily,
Those flimsy little walls
But I can't tell if your for real
When you walk through those halls

You smile at me,
Big, bright and warm
It startles me
As I was expecting a storm

I've paid attention to you,
For you've been paying attention to me
But what I can't figure out
Is why that would be

I'm not exceptional
In any way
So why would you talk to me?
Why would you stay?

I'm too confused,
My confidence is lost
My heart incapable of love?
Yeah, it's covered in frost

I won't bring myself to trust
It's the one thing I can't do
So that could be why,
I act cold towards you

I guess I can't believe it
Someone interested in me?
So instead I turn away from you
Again, I pathetically flee