I used to have an old friend. His name was Brian.
He and I were friends for about 6 years. He moved to the USA before I did, but we had still kept in contact. When I moved to the USA, we had reunited. But things didn't go to well. He started ignoring me.
Eventually he said that he no longer wanted to be friends with me, because I was venting too much. We had fond memories together, but he hates me now.
And to be honest, I've moved on from the sad feelings for the most part. I still think about it daily though.