I have had this kind off dream before, never wrote the suicide note before going to sleep though. I woke up frightened and my wife put it all in perspective for me.. the events of the dream (people fighting because they were not invited) would not happen. in my location when someone dies regardless of the reason their obituary and a death notice are pubic knowledge by way of the local news papers. whether I want someone to be excluded or not wont be an issue because I will be to put it my wifes words ...dead and gone and cant prevent anyone from attending. things like births and deaths are just a matter of public records here in america. add to that anyone can google anyones name and receive information on that person, not to mention theres social media. I couldnt help but laugh at what for me was the absurdity of my dream after that. it no longer bothers me to have this nightmare any more.