Have you really ever thought about it,

 You've got this girl, head over heels in love with you.
She'd do anything for you, she'd die for you. But for
some reason, you don't want to see that. You know it's there, and you know that you feel the same way. But you refuse to let it be. Maybe you're scared of the thought that this girl who you've known forever - you've seen her happy, you've seen her sad -- maybe this girl is perfect for you. 

& that really scares the hell out of you, doesnt it.? ,