Welcome to the forum Blueeyedgirl, lovely to have you. We have much information about dealing with PTSD in loved ones, so you have come to the right place to learn and receive support.

I haven't much time to answer fully right now, I will come back to this. Briefly though - you mentioned that your boyfriend is on medication. Aside from that, is he in any kind of therapy? It sounds as though he could benefit from that. Medication alone is seldom effective.