Feeling in love (or lust) and fear feel a lot alike. They both give you that anxious butterfly feeling in your stomach, a sense of excitement, and a general unease physically and mentally. It's easy to confuse love with fear.
Greg Behrendt, Amiira Ruotola-Behrendt (2005). “It's Called a Breakup Because It's Broken: The Smart Girl's Break-Up Buddy”, p.143, Harmony
