I'm your secret admirer

I've never been the type to say what I feel
So basically I keep everything inside
And with you it was no different
I want to tell you, believe me I've tried

But there's part of me that just can't take that chance
So I doubt that you'll ever know
Which may be fine with you, but it's hurting me
I choose not to show it though

I guess I'm your secret admirer
That name seems to fit just right

I don't know what I like about you

But you're on my mind, day and night