Relapse

Relapse I have a very slight stutter that maybe happens once every ten minutes, because of this stutter my self confidence has been shot and i have become an introverted quite person. I was getting better with my stutter before i went to college, when im with people i know very well i do not stutter. When i went to college i met someone who has almost the exact same stutter problem as me and all the progress i have made has been destroyed. Is it just the anxiety of being at college where i dont know anyone that has brought it back, or hearing him stutter all the time that has brought it back?