Friends become friends when I live close to them.

As I became a RA, I have experienced a huge change in my relationship. I read from RA class text book that it would happen. I am feeling strange. For I was used to hang with my friends longer than I sleep. My mutual friends start to ask me more time for them. It always happens that as I start new thing, I leave my close friends and seek for new relationship. I am not saying I don't like that but it is sad to lose some part of me.