I think this song refers to the feelings that you experiment when a love relationship starts to fall apart. There are good things ("last night parties") but there are bad things either ("and last night horrorshow") and she knows that everything has an end ("They say for every heart high there must be a low") but she wants to feel the same again, like in the old days ("Drive my heart, drive my heart, into the fire of a burning heart's desire").
When she ask for advice to her mother, she told her that "The dream of love is a two hearted dream", which means that if he doesn't want to continue the relationship, then, there's nothing to do. She can't fight it alone.
I think this song refers to the feelings that you experiment when a love relationship starts to fall apart. There are good things ("last night parties") but there are bad things either ("and last night horrorshow") and she knows that everything has an end ("They say for every heart high there must be a low") but she wants to feel the same again, like in the old days ("Drive my heart, drive my heart, into the fire of a burning heart's desire"). When she ask for advice to her mother, she told her that "The dream of love is a two hearted dream", which means that if he doesn't want to continue the relationship, then, there's nothing to do. She can't fight it alone.