There's a certain feeling of giving, a certain feeling of generosity in love songs. When you sing a song of love, you're actually giving something to yourself, too. You're singing and casting these affirmations of love out into the universe.
I would say what scares me is that I'm going to ultimately find out at the end of my life that I'm really not lovable, that I'm not worthy of being loved. That there's something fundamentally wrong with me.