According to psychologist Dr. Baffour-Awuah, the average length of a crush is four months, but these feelings of infatuation can last anywhere from a few hours to a few years. If your crush lasts longer than a couple of years, it may be a sign of limerence, a term used to describe an addiction to the feeling of being in love. Are you currently in love with someone or love sick? A celebrity perhaps? Celebrity crushes are normal too! Comment below your crushes.