I'd rather be the half of us, the least of you, the best of...

I'd rather be the half of us, the least of you, the best of me; and I will be - I'll be your prince, I'll be your saint, I will go crashing through fences in your name; I will, I swear - I'll be someone to fall back on. I'll be the one who waits, and for as long as you let me, I will be the one you need - I'll be someone to fall back on.