How Can I Be Sure

How can I be sure in a world that's constantly changing?
 How can I be sure where I stand with you?
 Whenever I, whenever I am away from you
 I wanna die 'cause you know I wanna stay with you.
 How do I know? Maybe you're trying to use me.
 Flying too high can confuse me. Touch me but don't take me down.
 Whenever I, whenever I am away from you
 My alibi is telling people I don't care for you.
 Maybe I'm just hanging around with my head up upside down.
 It's a pity, I can't seem to find someone who's as pretty
 and lovely as you.
 How can I be sure? I really really really wanna know.
 I really really really wanna know. Oh.
 How can I be sure in a world that's constantly changing?
 How can I be sure? I'll be sure with you.