Losing my best friend...

I don't know what happened between us, it's not like it happened all of the sudden either. Over a period of time, him and I just stopped talking so much, and now we never talk, it makes me really upset. I miss him. Eric and I were so close, but now it's almost like we are strangers... I don't even know if he is coming to my going away party, I really want him to, because if he's not there it won't mean alot to me. I love him.