If you're apprehensive about dating a friend, you should probably get over it. University of Texas researchers asked students to rate each other for attractiveness at the beginning of the semester, and again at the end. They found they typically rated each other much higher at the end of the semester. Additionally, researchers found couples knew each other four months before dating, and 40 percent were friends before dating. Dating expert Matthew Hussey explains, "The purity of an initial friendship allows you to see someone’s character before it’s blurred by sexual intentions and wanting to ‘get’ something physical out of it. The most enduring romantic relationships - long-term marriages and partnerships - end up being much more about compatibility and companionship than sexuality."