Hi there-
No contact is really the easiest way. I have never been one to stay friends with an ex because that brings all of the pain back. I was in love with my ex boyfriend too, but I did not want to stay in a relationship with someone who was drinking too much, smoking and hanging out at bars all the time. He told me he was going to cut back on doing all those things but he was lying to me.
Anyway I have no desire to hear about who he is dating now and what he is doing, sometimes I would like to know he is ok but he also has a lot of unresolved anger issues and he refuses to seek help for his emotional problems, I'm just glad I got out.
Sucks but you did the right thing... who wants a lifetime of endless pain?