It's hard to believe that a friend of 10 years would treat you so horribly. Unless there is more to the story, I fail to see how you said or did anything to justify him treating you like that.

If he is going to be so mean to you, I would honestly let him go and move on. Communication issues or not, there is no excuse for him to treat you like that unless you did something harmful to him which I doubt judging by the tone of your posts.

If you have to be afraid of being blocked or ignored and pushed aside like last week's garbage for speaking your mind by somebody, it's time to kick that person out of your life.