I love this song... she knows that she couldn't send the letter, because the person's disappeared, but she also knows that even if she knew where to send it, she most likely wouldn't be able to bring herself to mail it anyway, because in the end, she'd only be admitting she still cares very much for this person who has abandoned her... and no one wants to show weakness to someone so capable of hurting.
I love this song... she knows that she couldn't send the letter, because the person's disappeared, but she also knows that even if she knew where to send it, she most likely wouldn't be able to bring herself to mail it anyway, because in the end, she'd only be admitting she still cares very much for this person who has abandoned her... and no one wants to show weakness to someone so capable of hurting.