like ok so me and my gf jus recently broke up and we have been like arguing for the past week...thinkin about gettin back together...but its kinda complicated...i need a song thats gunna tell her that she is the only one i want/need in my life.....AHHH PLEASE HELP

p.s. there is this other girl that wants to b with me...and my gf knows that...so she is like freakin out and thinks im gunna go b witht his other girl. I need her to kno that she is the only one for me!!!

THANX GUYS!!!