In past posts, I have written about secondary loss, the additional losses faced in the aftermath of a suicide loss. The loss of additional friends and family members can make you feel alone as you fight the biggest battle of your life; learning to live without the person you lost. 
It is difficult to not become bitter, resenting the world around you. In my own experience, I have found that the people we lose were often not as supportive and good as we once thought. A woman who lost her best friend after her own suicide loss realized that their entire relationship was based on the support she gave her. When she needed it, her friend wasn’t able to provide the support she needed, and as she looked back she realized she never did. Their friendship had been based on her being the supportive one. When the roles changed, the relationship wasn’t able to survive. It can be difficult to not focus on people who walk out when we need them the most. While the doors may close, and the backs may turn, there is often someone there waiting to hold our hands and walk with us on our journey. Let them in, and let the others go. Maybe the relationship wasn’t as good as we once thought.
I liked your thoughts on letting go of friendships that couldn’t survive your loss by suicide. That’s true you have to let go of them as they weren’t the friendships you thought. Surviving a suicide in your family cleans house with friends immediately. So in your greatest need, you are forced to let go of sometimes even life long friends Better to know, but it is devastating at the time. I feel truly blessed to say, I have never left a friend in times of crisis. My father taught me that; he took his life in 1995. We buried him on Father’s Day.