My ex has blocked me at my whole family on Facebook?

My ex left me in a very cowardly way (a way that you would look back a couple years down the track and be like 'wow, I can't believe I did that' via text whilst he was overseas a few months ago. I blocked him on facebook a this stage because I didn't want to be tempted to look at his profile. This was 4 months ago. About a month ago I unblocked him, as I felt I was ready to at this stage. I was not over him but I felt strong enough to unblock him at least. Within less than a week he had blocked me already, as well as all of my family members. I first of all don't even know how he knew I unblocked him as we were no longer friends on facebook and I did not contact him. A couple days later I then realised he had blocked my brother, sister and father on facebook, of which he had never been friends with on facebook or even inboxed / contacted on facebook. He would have actually had to somehow find out I had unblocked him, then searched through my friends list for all my family and blocked them. I was struggling to understand why my number and facebook are still blocked to this day (4 months after the breakup) however I came to terms with it. I really don't understand, however, why to this day all of my families facebooks' (as well as my facebook and mumber even though I understand me being blocked a bit more as this is a breakup) are blocked? It has been 4 months and they never had each other on facebook or contacted each other on there.

What would a possible reason for this be? Please don't answer saying 'why do you care'. I still do care, and someday in the future I will no longer care but at this stage I do / am just trying to understand this. When he broke things off I had no closure and this is part of the closure I'm having to create for myself.

Thanks so much.
My ex has blocked me at my whole family on Facebook?
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