The sad truth is, unless you have suffered this, people do not understand. "Get over it" seems to be the stance people take. I suggest letting your friends know exactly how it feels and if they cannot be understanding of that in the least, then maybe a change up of friends is in order. I was lucky in that my brother was born retarded and was a high special needs person. He was loved by everyone and my friends were all, and still are very understanding. I hope you find some peace through all of this.