Someone has already wound me up by saying they know how she feels .. er no they don't! Even if you have lost in similar circumstances you can not begin to understand what someone is going through. In my opinion grief is personal and individual to the person and their loss. Sometimes we can accept it, sometimes we can't ... I've remained haunted by some of the younger losses whist others I've grown to accept. As much as we sympathise no one can really know the pain of grief experienced by an individual at their loss.
RIP Dear Marco - You certainly will never be forgotten, you have been loved.