As I sat having coffee with my friend Liz, I saw our mutual friend from childhood, Rob, come up to meet us.  As we greeted each other, I suddenly realized that my heart started beating faster the moment I saw Rob, and that for the past hour, I had been eagerly anticipating his return from school without even noticing it.  When had this happened?  When does a friendship turn into something more?  I had no answers as we sat down and ordered some food and talked about Rob's time at law school, how I was handling being at Harvard Med, and how Liz was handling her new PR job.  Even though words were coming out of my mouth, I had no real idea of what I was saying -- all I could think about was how much I had missed Rob, and how I was supposed to risk a friendship for something more.  
