Lyric discussion by MissDidymus 

Cover art for Unsung lyrics by Vanessa Carlton

I think she's fallen in love with someone only to realize that she's not quite so great in his eyes, and "only as good as the last one". Now she's trying to figure what exactly he needs from her to "sparkle" and now she's keeping her thoughts inside because she's waiting for him to decide and tell her just how much she means to him.