Anytime you are in a relationship casual or otherwise and there is a breakdown with open honest communication it becomes a game of tug-a-war. Never ever regret telling your bf your deep feelings about trust, do not settle for anything that is not good for YOU. My heart knows how you feel, been there done that and even bought the t-shirt. In my honest opinion your bf is not ready to commit and wants to do as he pleases. YOU must do what is good for YOU and never ever regret it. My very best to you.