Focus on the Flaws
One sure way to lower the emotional intensity is to concentrate on something that bugs you about the person. When a friend of mind lost her head in a crush, I went through the list of annoying and unappealing (superficial) characteristics in order to find a perfect match. “Think hard,” I told her, “Bad breath? Squeaky voice? Beer gut?” She finally told me she hates his laugh. Bingo! I told her to record it on her phone so that she has a reminder on the weaker days when infatuation colors her perspective.