"I can't live," wails the singer, "if living is without you." The emotion that fuels this kind of relationship isn't love; it's desperation. It can feel romantic at first, but over time it invariably fails to meet either partner's needs.
If this is how you feel, don't start dating. Start therapy. Counseling can teach you how to get your needs met by the only person responsible for them: you. "I can live without you" is an assurance that sets the stage for real love.