I also have a story, but it's from a while ago. I'm 25 now and this happened when I was 17. I had a best friend for two years who had just moved to my super small village from Germany. Where I'm from in Canada, Germans are moving in because there is simply so much space that they don't have in Germany. Anyway, it was awesome to finally have someone to hang out with around me (I still had lots of friends at school). So we hung out a lot, but I developed this weird attachment to him and got super clingy and paranoid and just basically became a shitty person. I wanted to be around him all the time, but obviously that wasn't good. He was still good to me though. He even took to me to Germany with him and his family for Christmas. Sometimes he would get upset with me depending on how I'd act, but most of the time we were just really happy around each other when it was just us.
I started teaching him guitar, he bought a guitar and we would play together, and show each other what we learned when we were away from each other. We'd play PS2 all day or watched movies and went bicycling to ungodly far areas. It was really fun. I haven't touched a bike since those days now.
Eventually I think what got to him was that I was getting too worked up and controlling, because one day after we got back from Germany he called me up and told me I was boring and hung up on me. I don't get where the boring part came from because we always had fun, but a month later on I found out that him and his family were moving out West to Alberta. I'm not sure exactly what happened but part of me thinks that he used that as an excuse because he didn't want to say goodbye. I also didn't want to say goodbye, so when his family had a goodbye dinner at my house (both our parents were/are still very good friends) I didn't leave my room. My mom came to get me a few times but I told her to go; she could see how confused I was. I would still see him in school for the remainder of the year, and it was really awkward when we'd pass each other in the hallway. I remember this one time it was just the two of us in the main entrance, and the way he looked at me. I still don't understand that look. Anyway, that was the last I saw him and his last thing I heard him say was that I was boring. I still think he thinks of me from time to time just as I still think of him, and on some degree I do think that he cut off ties because he knew he was leaving. But at the same time I was super shitty to him at times and in public, and sometimes I would ridicule him for hanging out with certain people, which I am very sorry for. I have been too scared to ask his parents for his email for the past 8 years but I know I will someday. But it probably won't matter by then because we were both just stupid teenagers and hopefully he'll also see it that way. I'm not the same person as I was back then, as I'm sure he isn't the same as well. I kind of wish I could see him now because I know we'd get along.