It actually is a reflexion of your mood or troubles but can she really understand?
Obviously if you listen to a sad song, there are some troubles in there that you might not even know about. On the contrary if you listen to something happier you have something to feel happy about! And you also vibe that!
My example for this is, I have 3 different playlists on youtube with songs especially for when I am alone with a woman and I know we will have sex. They are sensual songs that turn the mood in the room the way I want it to be.
Something more, I don't think Manson and Archive are emo music.