I miss him so

Does this happen to every one? I find that I see him in some one every day. It sends a wave of grief that washes over  me and then as I ponder about it, I smile remembering something fond about him.
The other day, it was a man at the airport. His mustache send me spiraling down  memory lane. I remembered how it was shaped and how it moved when he smiled. Another time, it was a suede pant that someone wore.
Each time, there is a sharp burst of pain somewhere deep and then as I pull myself out of the miserable few minutes, I remember him for everything he was for me. He was my link to home, to normalcy when I was far away. He was my pillar, my companion, my friend when I spent months at home being desperate without a job. He kept me entertained and helped me adapt to my brand new life.
We shopped, cooked, read and gossiped, discussed religion, politics and so much more.
Now that link is gone and I miss him terribly. I constantly wonder where he is and what he is up to. I wonder when this would go away and when he will just be a pleasant memory. Though, I am not sure I want it that way.
I guess I am just extra sad today and I wish he was still around.