He said he has a right to control his image on FB and what pics are posted and he was hurt that I blocked him without discussing it with him. I said we were not capable of discussing things at that point, and now that he is back on FB I unblocked him.
Did you validate he felt hurt or go right into explaining why you did it? If you go into why you did something you get defensive and it puts both of you in a mindset where your reacting to the other and defending your actions. One makes a comment that puts the other in a defensive mindset, that leads to reacting and puts the other in a defensive mindset where they react and the cycle continues. This cycle goes around and makes a small issue into a big argument.
'The Solo Partner' everyone should be reading this book, honestly. Defensiveness, reactivity, other dynamics that cause issues. I've not been in the situation working on the R but I can tell you you can change that dynamic alone. It takes some time but amazing things can happen and you may start to see things you wanted him to say/do in the past happen once you break your portion of that dynamic.
Accept what is, let go of what was, and have faith in what will be