Human nature is a funny thing You been out there all these years No explaining 'bout this chemistry As I wipe away these tears I been staking out your neighborhood And my eyes are open wide You're All I Need, my little heart is aching You're all I see, don't let my heart keep breaking I been trying to make you notice me But you'd think I wasn't there I been saving my best jokes for you As if you could really care I been leaning on my sanity But it's time to let it go You're All I Need, my little heart is aching You're all I see, don't let my heart keep breaking I been staking out your neighborhood You can always count on me You're All I Need, my little heart is aching You're all I see, don't let my heart keep breaking