This is a really pretty song. To me it's about best friends. One who likes the other, but the other doesn't know. I should know. And a lot of people have felt this way.
Yeah just like BonePalceConductor said the song was written by the very own beautiful, amazing, talented, sexy, Craig Owens (hes so beautiful) to a girl he used to like, but unfortuatly he never got to be with her (such a shame).
The songs says to me that obviously Mr.Owens used to like a girl who he either has to flatter in some way or catch her attention in order to make her happy. Hed just baisicaly always do anything to make her happy, thats why he says, "BITE my tounge ANOTHER perfect time do ANYTHING to MAKE HER HAPPY". As long as shes breathing and shes happy and by his side his heart keeps beating.
So as long as this very lucky girl is happy he will be happy, and just like any person that likes someone he always wants to be around her or he wont feel happy, hell be super super sad, "the tought of her smile not beeing there my inner feeling would be shattered".
In conclucion, he really likes this girl and he will do whatever it takes to both be with her and maker her happy, he hopes and has faith that he will be with this girl one day.
(And that day really never came).
This song was written by Craig about a past love that he could never have but was happy as long as she was, and he still hopes that one day she will be with him.