<human>: Condense the text into a few key points

We were together for roughly 4 years, on and off. Our relationship was great when it was good and really terrible when it was bad. We were a long distance couple and I moved cities to be 3 hours closer to him (the closest I could get without crossing a border). Near the end of our relationship we didn't talk, pretty much at all.. 

It got to the point where I said it didn't feel like we were dating and I needed time to learn how to be friends again. Then in a terrible moment I suggested FWB, he was all on board but I backed out... Because I thought it would be confusing and I really didn't want to rush back into something when I wasn't sure what was going to happen.

Then suddenly he cuts contact with me completely. Deletes everything. Blocks me on everything. I returned the favor, deleted and blocked him as well. 

Its a year later and it still bothers me. I've moved on, I'm in a healthy relationship now but I still want closure, I want to reconcile with my ex, or at least understand what the hell was so bad that it had to go down like that, y'know? I guess my real problem is... How do I let this go?
<bot>: LDR went south. He went no contact, so I blocked him back. Year later, still want closure and to reconcile. How do I move on from this?