I am so sorry that you are hurting.
I have been contacted by the ex's of my son after they broke up before. It is usually fairly awkward and happens a few times and then stops. I suspect that any contact he has with your family with taper off and stop altogether as he moves on with his life.
As far as how he feels about you.....there are some things that we just never get to know and we have no choice but to accept the fact that we never get to know. And maybe that's ok. It's the curiousity that kills us;-)
You are young and are experiencing such a wonderful time in your life. Enjoy.
gentle hugs