If someone is visibly angry and they are in my space, I expect and ask them to either express why or leave.

My friend is telling me it is selfish but I don't understand how when it is my space. I don't want to deal with pissy people who refuse to communicate and expect me to guess wtf is going on. Their negativity is contagious and distracting.

I isolate myself no matter how angry I am and don't take it on innocent people , or make it that problem despite the fact that I had PTSD. Why can't they do the same as a healthy adult?