I think this song is about a girl who's afraid of basically being loved. She doesn't remember when she became like this, but she just is. She's normally a very brave person but when it comes to "showing someone her imperfections" she becomes afraid and she doesn't want to go on like this. So she's going to "unfold" and actually let someone love her and not be afraid. She's probably afraid of getting hurt and she doesn't want to put her trust in someone who's going to hurt her.
I think this song is about a girl who's afraid of basically being loved. She doesn't remember when she became like this, but she just is. She's normally a very brave person but when it comes to "showing someone her imperfections" she becomes afraid and she doesn't want to go on like this. So she's going to "unfold" and actually let someone love her and not be afraid. She's probably afraid of getting hurt and she doesn't want to put her trust in someone who's going to hurt her.