I have a friend that is going through treatment for PTSD. We have known each other for three years now and just recently he opened up to me about everything that he is going through. I have never heard him speak so candidly to me before and I made sure that he knew that I supported him and would always be there for him no matter what. Then out of the blue he has stopped talking to me. Won't answer my phone calls or emails. It was just like a switch was flipped and he blocked me from his life with no explanation. I don't know a whole lot about PTSD but I am doing my research and trying to figure it all out just so I can be there for him when/if he needs me. Is this normal for someone to do when they are suffering from PTSD? To just suddenly push someone away? I don't understand how we could have the conversations that we had a few days ago and then now all of a sudden he isn't speaking to me. All I did was show support. I am going to give him his space and hope that sometime soon he talks to me again but I guess all I can do right now is back off and keep him in my thoughts and prayers.