I love that! That's exactly how I feel about my boyfriend (his name is Blake btw :) so... about the title... what about "What you are to me" ? or "You are..." ? or even "The other half of me" ? these are all just suggestions keep on writing i love your work!

THIS IS EXACTLY HOW I FEEL ABOUT THIS GIRL BUT SHE DOSENT KNOW I EXSIST =(

Flows nicely, good rhyming scheme